OptiSwitch 900 Series User Manual [ML49175A, L2+ Ver. 2.1.6A, L3 Ver. 3.1.4, Rev. 09]_d48

MRV Communications, Inc. URL: http://www.mrv.com

OptiSwitch 900 Series Carrier Ethernet Service Demarcation Devices

For FE, GE, and 10GE Services

Models OS904, OS906, OS910, OS910-M, OS912, and OS930

User Manual

OS900 Series User Manual L2+ ver. 2.1.6A, L3 ver. 3.1.4

2 URL: http://www.mrv.com August 2010

Standards Compliance This equipment complies with the following standards: UL 60950-1:2007 CAN/CSA-C22.2 No. 60950-1-07; FCC Part 15, Class A; EMC Directive 2004/108/EC, Low Voltage Directive 73/23/EEC, RoHS Directive 2002/95/EC, NEBS/ETSI. Class I laser products. Internal lasers comply with IEC 60 825-1:1993 + A1:1997 + A2:2001/EN60825-1:1994 + A1:1996 + A2:2001. FCC Notice WARNING: This equipment has been designed to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct for the interference at the users own expense. The user is cautioned that changes and modifications made to the equipment without approval of the manufacturer could void the users authority to operate this equipment. It is suggested that the user use only shielded and grounded cables when appropriate to ensure compliance with FCC Rules.

Disclaimer MRV reserves the right to make changes to any technical specifications in order to improve reliability, function, or design. MRV reserves the right to modify the equipment at any time and in any way it sees fit in order to improve it. MRV provides this document without any warranty of any kind, whether expressed or implied, including, but not limited to, the implied warranties of merchantability or fitness for a particular purpose. The user is advised to exercise due discretion in the use of the contents of this document since the user bears sole responsibility. Trademarks All trademarks are the property of their respective holders. Copyright 2010 by MRV All rights reserved. No part of this document may be reproduced without prior permission of MRV. This document and the information contained herein are proprietary to MRV and are furnished to the recipient solely for use in operating, maintaining, and repairing MRV equipment. The information within may not be utilized for any purpose except as stated herein, and may not be disclosed to third parties without permission from MRV.

Document Number: ML49175A Document Revision: Rev. 09 Release Date: August 2010

Contact Information For customer support, you can:

Contact your local MRV representative E-mail us at [email protected] Visit our MRV Web site at http://www.mrv.com

ML49175A, Rev. 09 Contents

January 2010 URL: http://www.mrv.com 3

Contents About this Manual...............................................41

Audience.................................................................................................................................. 41

Latest Revision ....................................................................................................................... 41

Image Versions ....................................................................................................................... 41

Hardware Requirements ........................................................................................................ 41

Features................................................................................................................................... 41

Related Documents ................................................................................................................ 42

Organization............................................................................................................................ 42

Typographical Conventions .................................................................................................. 44

Acronyms ................................................................................................................................ 44

Safety Requirements ..........................................49 At all Times.............................................................................................................................. 49

Before Installing...................................................................................................................... 49

During Installation/Maintenance ........................................................................................... 50

Before Powering On ............................................................................................................... 50

During Operation .................................................................................................................... 51

Servicing.................................................................................................................................. 51

Chapter 1: Overview ..........................................53 General..................................................................................................................................... 53

Product Highlights.................................................................................................................. 53

Applications ............................................................................................................................ 53

Architecture............................................................................................................................. 53

Telco Compatibility................................................................................................................. 54

Optical SFP Interfaces............................................................................................................ 54

VPN Services & Protection .................................................................................................... 54

Traffic Management................................................................................................................ 54

Hierarchical QoS CoS-Aware Rate Limit ........................................................................... 54

Denial of Service (DoS) Protection ....................................................................................... 55

System Management .............................................................................................................. 55

Ethernet OAM with IEEE 802.1ag and ITU-T Y.1731............................................................ 56



Ethernet OAM with IEEE 802.3ah .......................................................................................... 56

Ethernet Loopbacks ............................................................................................................... 56

Virtual Cable Diagnostics....................................................................................................... 56

Digital Diagnostics (Optical Performance Level Monitoring)............................................. 56

Link Aggregation .................................................................................................................... 56

Per-service Performance Monitoring.................................................................................... 57

Link Reflection/Propagation .................................................................................................. 57

Analyzer VLAN ........................................................................................................................ 57

Multiple-instance STP............................................................................................................. 57

Models...................................................................................................................................... 57

Layout ...................................................................................................................................... 60 View ..................................................................................................................................... 60 Power Supply Switch (Only in OS910-M and OS930)......................................................... 65 Power Pushbutton................................................................................................................ 65 Reset Pushbutton (Not in OS910-M) ................................................................................... 65 External Clock Input (Only in OS910-M).............................................................................. 65 Ports..................................................................................................................................... 65 LEDs .................................................................................................................................... 66 Fans ..................................................................................................................................... 66 Earthing................................................................................................................................ 66 Power Supply....................................................................................................................... 67

Options..................................................................................................................................... 67 SFPs/XFPs .......................................................................................................................... 67 Service Modules (Only in OS910-M) ................................................................................... 67 Power Supply....................................................................................................................... 67

Chapter 2: Applications..................................... 69 General..................................................................................................................................... 69

Micro-PoP Services ................................................................................................................ 69

WAN Ethernet Manageable Services .................................................................................... 69

Business Ethernet Services................................................................................................... 70

10 Gbps Ethernet High-end Demarcation Services............................................................. 70

WAN 10 Gbps Manageable Ethernet Services ..................................................................... 71

10 Gbps Ethernet Services over WDM.................................................................................. 71

Chapter 3: Installation ...................................... 73 General..................................................................................................................................... 73

Safety ....................................................................................................................................... 73

Package Contents................................................................................................................... 73


August 2010 URL: http://www.mrv.com 5

Essentials ............................................................................................................................ 73 Options ................................................................................................................................ 73

Requirements.......................................................................................................................... 73 Tools .................................................................................................................................... 73 Data Equipment ................................................................................................................... 73 Management Equipment ..................................................................................................... 74 Mounting .............................................................................................................................. 75 Environmental...................................................................................................................... 76 Power................................................................................................................................... 76 Grounding ............................................................................................................................ 77

Procedure ................................................................................................................................ 78 Component Insertion ........................................................................................................... 78 Mounting .............................................................................................................................. 78 Earthing ............................................................................................................................... 80 Network Connection ............................................................................................................ 80 Power Source Connection................................................................................................... 81

Chapter 4: Startup, Setup, and Operation.........83 Startup ..................................................................................................................................... 83

Setup........................................................................................................................................ 83 Operation ............................................................................................................................. 83 Management........................................................................................................................ 83

Operation................................................................................................................................. 84 Monitoring ............................................................................................................................ 84 Reset ................................................................................................................................... 85 Shutdown............................................................................................................................. 85

Chapter 5: CLI Management..............................87 General..................................................................................................................................... 87

CLI Access............................................................................................................................... 87 General ................................................................................................................................ 87 Access Levels...................................................................................................................... 87 Preparation .......................................................................................................................... 88 First Time Access Root and Admin Passwords Configuration......................................... 88 Standard Access.................................................................................................................. 89

CLI Modes................................................................................................................................ 90

Viewing CLI Commands......................................................................................................... 90

Conventions for CLI Commands........................................................................................... 90

Symbols in CLI Commands ................................................................................................... 90

Functional Keys for CLI Commands..................................................................................... 91

Help .......................................................................................................................................... 92

Listing CLI Commands........................................................................................................... 93



Invoking a CLI Command....................................................................................................... 94 General ................................................................................................................................ 94 Procedure ............................................................................................................................ 94 Example ............................................................................................................................... 95

Quick Entry of a CLI Command............................................................................................. 96

Negation of CLI Command..................................................................................................... 97

Viewing Modes ........................................................................................................................ 97 Paging.................................................................................................................................. 97 No Paging ............................................................................................................................ 97

Pipelining a CLI Command .................................................................................................... 97

Accessing an enable Mode Command from any Mode ...................................................... 98

Alias.......................................................................................................................................... 98 Viewing ................................................................................................................................ 98 Assigning ............................................................................................................................. 99 Invoking................................................................................................................................ 99 Deleting................................................................................................................................ 99

Copy-Paste Mode.................................................................................................................. 100 General .............................................................................................................................. 100 Usage................................................................................................................................. 100 Example ............................................................................................................................. 100

Linux Mode ............................................................................................................................ 101 General .............................................................................................................................. 101 Entry................................................................................................................................... 101 Exit ..................................................................................................................................... 101

Passwords ............................................................................................................................. 102 Changing the Root Password (and Admin Password) ...................................................... 102 Changing only the Admin Password.................................................................................. 103 Configuring/Changing the Enable Password..................................................................... 103 Configuring/Changing the Configure Password ................................................................ 104 Deleting the Enable Password........................................................................................... 105 Deleting the Configure Password ...................................................................................... 105 Encrypting Passwords ....................................................................................................... 105

Viewing Installed Components............................................................................................ 106 Hardware and Software ..................................................................................................... 106 Backup Image .................................................................................................................... 107 CPU ................................................................................................................................... 107

Remote Management Access .............................................................................................. 107

Hostname............................................................................................................................... 107 New.................................................................................................................................... 107 Default................................................................................................................................ 108

Banner.................................................................................................................................... 108 Definition ............................................................................................................................ 108 Default................................................................................................................................ 108 Viewing .............................................................................................................................. 108 Configuring......................................................................................................................... 108



Date ........................................................................................................................................ 109

Time........................................................................................................................................ 109

Location................................................................................................................................. 109

Rebooting .............................................................................................................................. 110 Modes ................................................................................................................................ 110 Methods ............................................................................................................................. 110

Learn Table............................................................................................................................ 111 Definition............................................................................................................................ 111 Viewing .............................................................................................................................. 111 Learning............................................................................................................................. 111 Aging.................................................................................................................................. 112 Limiting .............................................................................................................................. 112 Dropping ............................................................................................................................ 113 Adding Entries Manually.................................................................................................... 113 Policing .............................................................................................................................. 114 Flushing ............................................................................................................................. 114

Maximum Transmission Unit (MTU) ................................................................................... 115 General .............................................................................................................................. 115 Definition............................................................................................................................ 115 Applicability........................................................................................................................ 115 Setting for Ports ................................................................................................................. 115 Setting for VLAN Interfaces ............................................................................................... 115

Syslog .................................................................................................................................... 116 Definition............................................................................................................................ 116 File Location ...................................................................................................................... 116 Logging of Events .............................................................................................................. 116 Default Mode ..................................................................................................................... 116 Logging of CLI Commands................................................................................................ 116 Viewing .............................................................................................................................. 117 Clearing ............................................................................................................................. 117 Remote Syslog .................................................................................................................. 117

Scripts.................................................................................................................................... 118 Definition............................................................................................................................ 118 Purpose ............................................................................................................................. 118 Structure ............................................................................................................................ 118 Creating ............................................................................................................................. 118 Parameters ........................................................................................................................ 119 Lines .................................................................................................................................. 120 Viewing .............................................................................................................................. 122 Executing ........................................................................................................................... 123 Deleting.............................................................................................................................. 123 Example............................................................................................................................. 124

Console Access Control ...................................................................................................... 125 Disabling the Console........................................................................................................ 125 Enabling the Console ........................................................................................................ 125

Layer 2 Protocol Counters................................................................................................... 125 Viewing .............................................................................................................................. 125



Clearing.............................................................................................................................. 126

Default Configuration ........................................................................................................... 126 Viewing .............................................................................................................................. 126 Setting................................................................................................................................ 126

Chapter 6: Ports .............................................. 127 General................................................................................................................................... 127

Enabling/Disabling................................................................................................................ 127 Default................................................................................................................................ 127 Custom............................................................................................................................... 127

Status ..................................................................................................................................... 127 Brief.................................................................................................................................... 127 Detailed.............................................................................................................................. 128

Comment Adding .................................................................................................................. 128

Physical Interface ................................................................................................................. 129 Default................................................................................................................................ 129 Custom............................................................................................................................... 129 Viewing .............................................................................................................................. 130

MDI/MDIX................................................................................................................................ 130 Default................................................................................................................................ 130 Custom............................................................................................................................... 130

Speed ..................................................................................................................................... 130 Default................................................................................................................................ 130 Custom............................................................................................................................... 130 Viewing .............................................................................................................................. 131

Link Mode (Bypass) .............................................................................................................. 131 Default................................................................................................................................ 131 Custom............................................................................................................................... 131 Viewing .............................................................................................................................. 131

Duplexity ................................................................................................................................ 131 Default................................................................................................................................ 131 Custom............................................................................................................................... 131 Viewing .............................................................................................................................. 132

Traffic Throughput Reading................................................................................................. 132 For User-specified Time Interval........................................................................................ 132 Of Last User-specified Time Interval ................................................................................. 132 Of Latest User-specified Time Intervals............................................................................. 133

Port SFP Reading.................................................................................................................. 133 Parameters ........................................................................................................................ 133 Diagnostics ........................................................................................................................ 134

Capabilities Advertising ....................................................................................................... 135 General .............................................................................................................................. 135 Applicability ........................................................................................................................ 135 Requirement ...................................................................................................................... 135



Default ............................................................................................................................... 135 Custom .............................................................................................................................. 135 Viewing .............................................................................................................................. 137

Outbound Tag Mode............................................................................................................. 137 Tagged............................................................................................................................... 137 Untagged ........................................................................................................................... 137 Hybrid ................................................................................................................................ 138 Q-in-Q (Service VLAN Access Mode) ............................................................................... 138 Viewing .............................................................................................................................. 138

Multi-VLAN Membership for Untagged Ports .................................................................... 139

Link Protection...................................................................................................................... 139 Example 1 Using Two Devices....................................................................................... 140 Example 2 Using a Single Remote IEEE 802.1ag MEP.................................................. 141 Disabling ............................................................................................................................ 145 Viewing .............................................................................................................................. 145 Changing the Primary Link Port......................................................................................... 145

Link Reflection ...................................................................................................................... 146 Enabling............................................................................................................................. 147 Disabling ............................................................................................................................ 149 Viewing .............................................................................................................................. 149

Port Protection (Private VLAN)............................................................................................ 149 Definition............................................................................................................................ 149 Purpose ............................................................................................................................. 149 Advantage.......................................................................................................................... 150 Configuration ..................................................................................................................... 150 Viewing .............................................................................................................................. 150

Link Flap Guard .................................................................................................................... 150 General .............................................................................................................................. 150 Custom Setting .................................................................................................................. 150 Viewing .............................................................................................................................. 151 Default Setting ................................................................................................................... 151 Reconnecting Isolated Ports.............................................................................................. 151

Link Flap Dampening ........................................................................................................... 152 General .............................................................................................................................. 152 Principle of Operation ........................................................................................................ 152 Parameters Setting............................................................................................................ 152 Enabling............................................................................................................................. 153 Disabling ............................................................................................................................ 153 Viewing .............................................................................................................................. 153 Recovering Isolated Ports ................................................................................................. 155

Regular, Dual, and Extra Internal Ports.............................................................................. 155 General .............................................................................................................................. 155 Application ......................................................................................................................... 155 Bypassing Internal Ports.................................................................................................... 155 Revoking Bypass of Internal Ports .................................................................................... 156

Double Tagging Mode .......................................................................................................... 156 General .............................................................................................................................. 156



Requirement ...................................................................................................................... 156 Principle of Operation ........................................................................................................ 156 Implementation .................................................................................................................. 157

Loopback at Layer 2 ............................................................................................................. 159 Enabling ............................................................................................................................. 159 Disabling ............................................................................................................................ 159

Flow Control .......................................................................................................................... 159 Definition ............................................................................................................................ 159 Purpose.............................................................................................................................. 159 Applicability ........................................................................................................................ 159 Effect .................................................................................................................................. 160 Principle of Operation ........................................................................................................ 160 Configuration...................................................................................................................... 160 Compliance ........................................................................................................................ 160

Statistics ................................................................................................................................ 160 Viewing .............................................................................................................................. 160 Clearing.............................................................................................................................. 163

Digital Diagnostics................................................................................................................ 163 SFP Parameters ................................................................................................................ 163 SFP Diagnostics ................................................................................................................ 164

Virtual Cable Diagnostics (VCD).......................................................................................... 165 General .............................................................................................................................. 165 Benefits .............................................................................................................................. 165 Principle of Operation ........................................................................................................ 165 Procedure .......................................................................................................................... 165 Example ............................................................................................................................. 166

XFP Port Protocol ................................................................................................................. 166 General .............................................................................................................................. 166 Setting................................................................................................................................ 166 Viewing .............................................................................................................................. 167 Clearing.............................................................................................................................. 168

XFP WAN Tx and Rx Trace................................................................................................... 168 General .............................................................................................................................. 168 Setting................................................................................................................................ 168 Viewing .............................................................................................................................. 169

Uni-Directional Link Detection Protocol (UDLD) ............................................................... 169 General .............................................................................................................................. 169 Applicability ........................................................................................................................ 170 Principle of Operation ........................................................................................................ 170 Requirements..................................................................................................................... 170 Configuration...................................................................................................................... 170 Viewing .............................................................................................................................. 174 Ingress Counters................................................................................................................ 175

Chapter 7: Interfaces ...................................... 177 General................................................................................................................................... 177



Purpose.................................................................................................................................. 177

Out-of-band RS-232 Interface.............................................................................................. 177

Out-of-band Ethernet Interface............................................................................................ 177 General .............................................................................................................................. 177 Remote Management ........................................................................................................ 177 TFTP Server Mode ............................................................................................................ 179 Deleting.............................................................................................................................. 180

Dummy Interface................................................................................................................... 180 General .............................................................................................................................. 180 Configuration ..................................................................................................................... 180

Inband VLAN interfaces ....................................................................................................... 181 General .............................................................................................................................. 181 Number .............................................................................................................................. 181 IDs ..................................................................................................................................... 181 Configuring ........................................................................................................................ 181 Name ................................................................................................................................. 183 Description......................................................................................................................... 184 Default Forwarding VLAN Interface................................................................................... 185 Drop Tag............................................................................................................................ 187 Drop Packets ..................................................................................................................... 187 Viewing .............................................................................................................................. 188 Modifying ........................................................................................................................... 189 Enabling............................................................................................................................. 190 Disabling ............................................................................................................................ 190 Remote Management ........................................................................................................ 191 TFTP Server Mode ............................................................................................................ 192 Statistics ............................................................................................................................ 194 Deleting.............................................................................................................................. 195

Bridging an Inband VLAN Interface to the Out-of-band Ethernet Interface.................... 195 General .............................................................................................................................. 195 Application ......................................................................................................................... 195 Procedure .......................................................................................................................... 195 Example............................................................................................................................. 197

Chapter 8: Multiple-instance Spanning-Tree Protocol (MSTP)................................................199

General................................................................................................................................... 199

Definition ............................................................................................................................... 199

Purposes................................................................................................................................ 199

MSTIs ..................................................................................................................................... 199 General .............................................................................................................................. 199 Default MSTI...................................................................................................................... 200

Regions.................................................................................................................................. 201

Principle of Operation .......................................................................................................... 202



Bridge Roles ...................................................................................................................... 202 Port Roles .......................................................................................................................... 203 Physical and Active Topologies ......................................................................................... 203

Rules ...................................................................................................................................... 204

Ports ....................................................................................................................................... 205 Placing Restrictions ........................................................................................................... 205 Removing Restrictions....................................................................................................... 206

BPDU Storm Guard............................................................................................................... 206 General .............................................................................................................................. 206 Custom............................................................................................................................... 206 Default................................................................................................................................ 206 Disabling ............................................................................................................................ 206

Applications........................................................................................................................... 207 Single MSTI ....................................................................................................................... 207 Multiple MSTIs without Load Balancing............................................................................. 208 Multiple MSTIs with Load Balancing.................................................................................. 211

Optional Configuration Parameters .................................................................................... 213 Port Priority ........................................................................................................................ 213 Port Path Cost.................................................................................................................... 214 Region Name..................................................................................................................... 214 Revision ............................................................................................................................. 215 Forward Delay Time........................................................................................................... 215 Hello Time.......................................................................................................................... 215 Maximum Age .................................................................................................................... 215 Maximum Hops .................................................................................................................. 216 Tagged BPDUs.................................................................................................................. 216

Configuration Example......................................................................................................... 217

Viewing Spanning-Tree State .............................................................................................. 220

Viewing Port States .............................................................................................................. 221

BPDUs.................................................................................................................................... 221 Policing .............................................................................................................................. 221 Tagging .............................................................................................................................. 221

IEEE 802.1ag Port Forwarding............................................................................................. 222 Enabling ............................................................................................................................. 222 Disabling ............................................................................................................................ 222

Filtering Events ..................................................................................................................... 222

Transmit-Hold Count ............................................................................................................ 222 Changing............................................................................................................................ 222 Default................................................................................................................................ 223

Port Recovery........................................................................................................................ 223

Chapter 9: ITU-T G.8032/Y.1344 Ethernet Ring Protection Switching (ERPS) ........................... 225



General................................................................................................................................... 225

Terms and Concepts ............................................................................................................ 225

Definition ............................................................................................................................... 226

Scope ..................................................................................................................................... 226

Ring States ............................................................................................................................ 226 Idle State............................................................................................................................ 226 Protection State ................................................................................................................. 226

Failure Recovery................................................................................................................... 227


Rules ...................................................................................................................................... 227

Single Ring ............................................................................................................................ 227 Configuration ..................................................................................................................... 227

Multi-Ring Ladder ................................................................................................................. 240 General .............................................................................................................................. 240 Example............................................................................................................................. 241

Optional Configuration Parameters.................................................................................... 244 Guard Timer....................................................................................................................... 244 WTR Timer ........................................................................................................................ 244 HO Timer ........................................................................................................................... 245

Viewing .................................................................................................................................. 245 Defaults.............................................................................................................................. 245 Configuration ..................................................................................................................... 246 Running Configuration....................................................................................................... 246 Configuration and Status ................................................................................................... 247 Configuration, Status, and Statistics.................................................................................. 247 Node State......................................................................................................................... 248

Chapter 10: Rate Limiting of Flood Packets...249 Definition ............................................................................................................................... 249

Purpose.................................................................................................................................. 249

Applicability........................................................................................................................... 249

Configuration ........................................................................................................................ 249

Viewing .................................................................................................................................. 251

Deleting.................................................................................................................................. 251

Example ................................................................................................................................. 252

Chapter 11: Provider Bridges ..........................253 General................................................................................................................................... 253

Purpose.................................................................................................................................. 253



Number of Provider Bridges................................................................................................ 253

Provider Bridge Ethertype ................................................................................................... 253

Provider Bridge Tag.............................................................................................................. 253


Configuration......................................................................................................................... 254

Viewing................................................................................................................................... 255

Example ................................................................................................................................. 255 Application Description ...................................................................................................... 255 Packet Data Path and Processing ..................................................................................... 255 Configuration...................................................................................................................... 256 Extending the Application .................................................................................................. 256 Extended Configuration ..................................................................................................... 257

Tunneling of Layer 2 Protocols ........................................................................................... 257 General .............................................................................................................................. 257 Principle of Operation ........................................................................................................ 257 Configuration...................................................................................................................... 258 Viewing .............................................................................................................................. 260 Canceling ........................................................................................................................... 260

Tunneling/Dropping of STP BPDUs by Hardware ............................................................. 261 General .............................................................................................................................. 261 Definition ............................................................................................................................ 261 Advantages ........................................................................................................................ 261 Terminology ....................................................................................................................... 261 Application ......................................................................................................................... 262 C-STP BPDU Tunneling .................................................................................................... 262 S-STP BPDU Transmission............................................................................................... 262 C-STP BPDU Dropping/Forwarding .................................................................................. 263 Example ............................................................................................................................. 264

Chapter 12: Tag Translation/Swapping .......... 265 Definition................................................................................................................................ 265

Purpose.................................................................................................................................. 265

Advantages............................................................................................................................ 265

Application............................................................................................................................. 265

Point-to-Point Topology ....................................................................................................... 265 Principle of Operation ........................................................................................................ 265 Configuration...................................................................................................................... 266 Implementation .................................................................................................................. 267

Point-to-Multipoint Topology............................................................................................... 269 Principle of Operation ........................................................................................................ 269 Implementation .................................................................................................................. 270



Chapter 13: IEEE 802.3ad Link Aggregation (LACP) ...............................................................273

Definition ............................................................................................................................... 273

Purpose.................................................................................................................................. 273

Number .................................................................................................................................. 273

Types...................................................................................................................................... 273

Principle of Operation .......................................................................................................... 273 Frame Transfer .................................................................................................................. 273 MSTP Action...................................................................................................................... 274

Rules ...................................................................................................................................... 274

Configuration ........................................................................................................................ 274

Activation............................................................................................................................... 275 Trunk.................................................................................................................................. 275 Port .................................................................................................................................... 276

Deactivation........................................................................................................................... 277 Trunk.................................................................................................................................. 277 Port .................................................................................................................................... 277

Viewing .................................................................................................................................. 277 Port Trunk Configuration ................................................................................................... 277 Port Configuration.............................................................................................................. 278

Deleting.................................................................................................................................. 278

Adding/Deleting Ports to a Trunk........................................................................................ 278

Chapter 14: Quality of Service (QoS) ..............281 DiffServ Service Levels ........................................................................................................ 281

Assigning SLs....................................................................................................................... 281 CPU Ingress Packets ........................................................................................................ 281 Non-CPU Ingress Packets................................................................................................. 282

Selecting an SL Criterion..................................................................................................... 282

Ingress-Port-to-SL Map........................................................................................................ 283

Original-VPT-to-SL Map ....................................................................................................... 283 Default ............................................................................................................................... 283 Custom .............................................................................................................................. 283 Viewing .............................................................................................................................. 284

Original-DSCP-to-SL Map .................................................................................................... 284 Default ............................................................................................................................... 284 Custom .............................................................................................................................. 284

Marking .................................................................................................................................. 285 General .............................................................................................................................. 285



SL-to-New-VPT Map.......................................................................................................... 285 SL-to-New-DSCP Map....................................................................................................... 287 Activation ........................................................................................................................... 288

Examples ............................................................................................................................... 288 VPT .................................................................................................................................... 288 DSCP ................................................................................................................................. 289

Statistics ................................................................................................................................ 290 General .............................................................................................................................. 290 Configuration...................................................................................................................... 290 Viewing .............................................................................................................................. 291 Clearing.............................................................................................................................. 292

Hierarchical QoS ................................................................................................................... 292 General .............................................................................................................................. 292 Principle of Operation ........................................................................................................ 292 Example ............................................................................................................................. 292

Chapter 15: Extended Access Lists (ACLs)....295 Definition................................................................................................................................ 295

Applicability........................................................................................................................... 295

Number................................................................................................................................... 295

Global Profiles....................................................................................................................... 295 General .............................................................................................................................. 295 Types ................................................................................................................................. 295 Selection ............................................................................................................................ 296 Changing............................................................................................................................ 296 Default................................................................................................................................ 296

Creating/Accessing .............................................................................................................. 296

Configuring............................................................................................................................ 297 General .............................................................................................................................. 297 Creating a Rule .................................................................................................................. 297 Viewing a Rule ................................................................................................................... 311 Editing a Rule..................................................................................................................... 312 Moving a Rule .................................................................................................................... 312 Enabling a Rule.................................................................................................................. 312 Disabling a Rule................................................................................................................. 313 Deleting a Rule .................................................................................................................. 313

ARP Packets.......................................................................................................................... 314

Global Default Policy ............................................................................................................ 314

Viewing................................................................................................................................... 315

Comment Adding .................................................................................................................. 315

Binding................................................................................................................................... 316 Limitations.......................................................................................................................... 316 Ingress Ports and Ingress VLAN Interfaces ...................................................................... 316 Egress Ports ...................................................................................................................... 318



Unbinding .............................................................................................................................. 318 Ingress Ports...................................................................................................................... 318 Ingress VLAN Interface ..................................................................................................... 319 Egress Ports ...................................................................................................................... 319

Deleting.................................................................................................................................. 319

Example ................................................................................................................................. 320

Modifying an Active ACL ..................................................................................................... 321 General .............................................................................................................................. 321 Adding a New Rule............................................................................................................ 321 Deleting an Existing Rule .................................................................................................. 321 Editing an Existing Rule..................................................................................................... 321 Example............................................................................................................................. 323

Counters ................................................................................................................................ 325 General .............................................................................................................................. 325 Assignment ........................................................................................................................ 325 Viewing .............................................................................................................................. 325 Removal............................................................................................................................. 327 Clearing ............................................................................................................................. 328

Chapter 16: Software-based Access Lists (ACLs) for Layer 2 Protocols ........................................329

General................................................................................................................................... 329

Definition ............................................................................................................................... 329

Applicability........................................................................................................................... 329

Number .................................................................................................................................. 329

Packet Speed ........................................................................................................................ 329

Configuring............................................................................................................................ 329 Port .................................................................................................................................... 329 ACL.................................................................................................................................... 330 Example............................................................................................................................. 332

Deleting.................................................................................................................................. 332

Chapter 17: SNMP Management......................333 Requirements........................................................................................................................ 333

Enabling................................................................................................................................. 333

Commands ............................................................................................................................ 333

Management Functions........................................................................................................ 333

System Identification............................................................................................................ 333

Access Control ..................................................................................................................... 334 SNMP Version 1/2c ........................................................................................................... 334 SNMP Version 3 ................................................................................................................ 336



Trap Generation .................................................................................................................... 338 General .............................................................................................................................. 338 Trap Host Specification...................................................................................................... 338 Trap Host Display .............................................................................................................. 338 Enabling/Disabling Authentication Traps........................................................................... 338 Trap Host Deletion............................................................................................................. 339 Trap Source Address Specification ................................................................................... 339 Link Trap Type ................................................................................................................... 339 Alarms................................................................................................................................ 340

Viewing................................................................................................................................... 340

Deleting a User...................................................................................................................... 341

View-based Access Control Model (VACM) ....................................................................... 341 General .............................................................................................................................. 341 Definition .......................................................