1111 © 2002, Cisco Systems, Inc. All rights reserved. AutoQoS Technical Presentation, 1/03 111 © 2002, Cisco Systems, Inc. All rights reserved. AutoQoS.

1111© 2002, Cisco Systems, Inc. All rights reserved.

AutoQoS Technical Presentation, 1/03 111© 2002, Cisco Systems, Inc. All rights reserved.

AutoQoS Technical Presentation, 1/03



Cisco AutoQoS Technical Presentation

Ramya VenkatramanTechnical Marketing Engineer – QoS

Internet Technologies Group



Agenda

• Introduction

• Cisco AutoQoS Framework

• Automation with Cisco AutoQoS

• AutoQoS Deployment Case Study

• Summary

Introduction



Introduction –IETF DiffServ Architecture (RFC-2475)

• The idea: different service levels for packets• The service: some significant characteristics of packet

transmission in one direction across the networkExamples: bandwidth and latency



A New Paradigm for Automating the Delivery of Network Quality of Service

• Key Takeaways:

Simpler QoS deployments – Reduces operator errors

Cheaper QoS deployments – Up to 2/3rds reduction in cost

Faster QoS deployments – Up to 2/3rds reduction in deployment time

• Cisco AutoQoS initial focus: QoS for Voice over IP

IP Telephony is here!

IP Telephony requires QoS

QoS deployment can be challenging

Cisco AutoQoS makes VoIP deployments simpler, cheaper, and faster

• Cisco AutoQoS retains 100% customer control over configuration



RO

UT

ER

SW

ITC

H

Classification (CoS, DSCP, ACLs, VLAN, Port-based)

Cisco QoS Introduction:A Complete Diffserv Toolkit

Link Efficiency Mechanisms (Compression, Fragmentation)

Congestion Avoidance Mechanisms (WRED, WRED-ECN)

Congestion Management Techniques (WFQ,CBWFQ,LLQ)

Classification & Marking (DSCP, IP Precedence, nBAR, etc.)

FE

Traffic Conditioners (Policing, Shaping)

Queuing & Scheduling (WRR, PQ)

Buffer Management & WRED

Classification (CoS, DSCP, ACLs, VLAN, Port-based)

Policing & Marking (Aggregate & Micro Flow Policing)

GEATMPPP

HDLCFRAME RELAY

PR

OV

ISIO

NIN

G &

MO

NIT

OR

ING

CB

Qo

SM

IB,

QP

M 3

.0



Agenda

• Introduction




• Summary

Cisco AutoQoS Framework



DiffServ Function

Cisco IOS QoS Feature Behavior

Classification NBAR

DSCP, Port

Classification of VoIP based on packet attributes or port trust

Marking Class-Based Marking Set L3 / L2 attributes to bucketize packets into a class

Congestion Management

% based LLQ,

WRR

Provide EF treatment to voice & BE treatment to data

Shaping Class-based Shaping or FRTS Shape to CIR to prevent burst & smooth Traffic to Configured Rate

Link Efficiency Mechanism

Header Compression Reduce the VoIP bandwidth requirement

Link Efficiency Mechanism

Link Fragmentation & Interleaving

Reduce jitter experienced by voice packets

• Automation and simplification of the existing user interface to expedite deployment of QoS features for VoIP

• Fine-tuning of AutoQoS generated parameters by user, if desired

Cisco AutoQoS - VoIP FrameworkDiffServ Functions Automated



Cisco AutoQoS Framework –Network Based Application Recognition

• BenefitsIdentifies Layer 4 to Layer 7 applications and protocols

• Stateful & deep packet inspection

Protocol Discovery analyzes application traffic patterns in real time and identifies traffic is running on the network

• Platform SupportCisco 1700, 2600, 3600, 7100, 7200, FlexWan Series RoutersSwitches: MSFC support on Sup 1a & Sup 2 introduced in Release 12.1(13)E

Citrix 25%Netshow 15%Fasttrack 10%

FTP 30%HTTP 20%

Link UtilizationWhat Applications are running through my network?



Cisco AutoQoS Framework –nBAR RTP Payload Type Classification

CODEC Payload Type

G.711 (Audio) 0 (mu-law) 8 (a-law)

G.721 (Audio) 2

G.722 (Audio) 9

G.723 (Audio) 4

G.728 (Audio) 15

G.729 (Audio) 18

H.261 (Video) 31

MPEG-1 (A/V)

MPEG-2 (A/V)

14 (Audio), 32 (Video), 33 (A-V)

Dynamic 96 - 127

• Eases classification of voice and video traffic

VoIP, streaming / real time video, audio / video conferencing, Fax Over IP

• Distinguishes between RTP packets based on payload type and CODECS

• Removes dependencies on UDP Port Range & DSCP markings



Cisco AutoQoS Framework –Percentage Based Policies

• ProblemsFixed CIR imposes scalability issues

Service policies differ by interface, with a wide range of interface bandwidths

• SolutionConfigure policies as a percentage of available bandwidth

• AdvantageIncreased Scalability & Manageability

Same Policy Map can be applied on multiple interfaces and on interfaces with varying bandwidth

Build Once, Apply Many PoliciesBuild Once, Apply Many Policies



10mbps Ethernet 10mbps Ethernet

Voice 1500 Data Bytes Voice Voice 1500 Data Bytes Voice Voice 1500 Data Bytes Voice

56kb WAN

~214ms Serialization Delay

Voice Packet60 bytes

Every 20 ms


Every >214 ms


Every >214 ms

Benefit: reduce the jitter in voice calls

• Implemented via Multilink PPP (MLP) over FR, ATM, and leased lines • Fragments are interleaved with the real-time packets, reducing the

Serialization delay experienced by Voice packets

Cisco AutoQoS Framework –MLPPP Link Fragmentation & Interleaving

Problem: large packets “freeze out” voice



Cisco AutoQoS Framework –RTP Header Compression

PROBLEM: Header = 2 X PayloadCODEC PPP

6 Bytes of HeaderATM

53 Bytes Cells witha 48 Byte Payload

Frame-Relay4 Bytes of Header

G.711 at 50 pps 82.4 kbps 106 Kbps 81.6 kbps

G.711 at 33 pps 75.5 kbps 84 Kbps 75 kbps

G.729A at 50 pps 26.4 kbps 42.4 Kbps 25.6 kbps

G.729A at 33 pps 20 kbps 28 Kbps 19.5 kbps

BENEFIT: Reduction in Voice Bandwidth RequirementCODEC PPP

6 Bytes of HeaderATM

53 Bytes Cells witha 48 Byte Payload

Frame-Relay4 Bytes of Header

G.711 at 50 pps 68 kbps N/A 67 kbps

G.711 at 33 pps 66 kbps N/A 65.5 kbps

G.729A at 50 pps 12 kbps N/A 11.2 kbps

G.729A at 33 pps 10.5 kbps N/A 10 kbps



Agenda

• Introduction




• Summary

Automation with Cisco AutoQoS



Automation with Cisco AutoQoS – VoIP Intelligence in the LAN

Server FarmServer Farm

Core

Layer 3 Switched Backbone

Layer 3 Switch

Layer 2 Switch

BuildingBuildingBuilding

Access

Distribution

• Enable Trust boundary (phone, access, uplink/downlink)• Enable Priority Queuing where required• Modify Queue Admission criteria where required• Configure CoS to DSCP and IP Prec to DSCP maps where required



Automation with Cisco AutoQoS – VoIP Intelligence in the WAN

Build MQC based policies for VoIPIntelligent Classification (Trust / Untrust)High Speed & Low Speed QoS Policies

Automatically enable QoS features specific to underlying transport protocol (FR, ATM, PPP, FR-to-ATM)

Enable Traffic Shaping where requiredEnable LFI (FRF.12, MLP) where requiredEnable CRTP

Monitoring & SNMP Alerts

125 Remote SitesWAN



Cisco AutoQoS Benefits Router Platforms

• User can meet the voice QoS requirements without extensive knowledge about:

Underlying technologies (i.e.: PPP, FR, ATM)

Service policies

Link efficiency mechanisms

• AutoQoS lends itself to tuning of all generated parameters & configurations

Cisco 2600, 2600-XM, 3600, 3700, and 7200 Series Routers



• Supported on serial (PPP & HDLC), ATM PVCs, FR DLCIs and FR/ATM links

Only on point-to-point sub-interfaces for FR and low speed ATM PVCs

Policies are specific to underlying transport layer protocol

• Automatically identifies H.323, MGCP, H.225 (Unicast), SIP and Skinny Signaling Protocols

• Command Line Interface

Automation with Cisco AutoQoS Router Platforms

auto qos voip [trust] – Untrusted Mode by default

auto qos voip [fr-atm] – Enabled on FR DLCI for FR/ATM Interworking



• ClassificationTrust: relies on DSCP markings from switches (DSCP EF & AF31)Un trust: nBAR RTP Payload Type Classification & Access Lists

• ProvisioningLLQ protects voice bearer and voice signaling trafficWFQ shares bandwidth fairly in the Best Effort Data class

• Policy GenerationEnables high- (>768Kbps) and low- (<=768Kbps) speed QoS

• MonitoringSNMP monitoring events are reported if the SNMP server is enabledThresholds activated in RMON alarm table to monitor LLQ drops

Automation with Cisco AutoQoS Router Platforms (Cont)



class-map VoIP-Bearer match protocol rtp audioclass-map VoIP-Control match access-group 101!policy-map QoS-Policy class VoIP-Bearer priority percent 30 set ip dscp efclass VoIP-Control bandwidth percent 5 set ip dscp af31class class-default fair-queue!Access-list 101 permit tcp any any eq 1720 \\H.323Access-list 101 permit tcp any any range 11000 11999 \\H.323Access-list 101 permit udp any any eq 2427 \\MGCPAccess-list 101 permit udp any any eq 2428 \\MGCPAccess-list 101 permit tcp any any range 2000 2002 \\ Skinny

Configuring QoS for VoIP on Low Speed Frame Relay WAN Link

Classify the traffic of interest for QoS Policy

Define QoS Policy Treatment

Without AutoQoS

Define ACLs to classifyVoIP Signaling


FrameRelay



interface Serial4/0 encapsulation frame-relayframe-relay traffic-shaping!interface Serial4/0.1 point-to-point bandwidth 256ip address 10.1.71.1 255.255.255.0 frame-relay interface-dlci 100 class VoIPFrame-relay ip rtp header-compression!map-class frame-relay VoIP frame-relay cir 256000 frame-relay bc 2560 frame-relay be 0 frame-relay mincir 256000 service-policy output QoS-Policy frame-relay fragment 320

Enabling FRTS, FRF.12 & CRTP

Enable Frame Relay Traffic Shaping

Apply FR class-map to DLCI

Frame Relay Traffic Shaping

Apply QoS Policy

Enable FRF.12

Enable RTP Header Compression

Without AutoQoS


FrameRelay



interface Serial4/0 encapsulation frame-relayframe-relay traffic-shaping!interface Serial4/0.1 point-to-pointbandwidth 256ip address 10.1.71.1 255.255.255.0frame-relay interface-dlci 100 class AutoQoS-VoIP-FR-Serial4/0-100 auto qos voipframe-relay ip rtp header-compression!map-class frame-relay AutoQoS-VoIP-FR-Serial4/0-100 frame-relay cir 256000 frame-relay bc 2560 frame-relay be 0 frame-relay mincir 256000 service-policy output AutoQoS-Policy-UnTrust frame-relay fragment 320

You enable AutoQoS

FRTS enabled by AutoQoS

FRTS & FRF.12 settings generated by AutoQoS

CRTP configuration generated by AutoQoS

You specify BW, IP Addr & FR DLCI

With AutoQoS


FrameRelay



Provisioning done by AutoQoS

Classification done by AutoQoS

class-map match-any AutoQoS-VoIP-RTP-Untrust match protocol rtp audio match access-group name AutoQoS-VOIP-RTCPclass-map AutoQoS-VoIP-Control-Untrust match access-group name AutoQoS-VOIP-Controlclass-map match-any AutoQoS-VOIP-Remark match ip dscp ef match ip dscp af31!policy-map AutoQoS-Policy-Untrustclass-map AutoQoS-VoIP-RTP-Untrust priority percent 70 set dscp efclass AutoQoS-VoIP-Control-Untrust bandwidth percent 5 set dscp af31class AutoQoS-VoIP-Remark set dscp defaultclass class-default fair-queue


FrameRelay

With AutoQoS



RMON event configured generated by AutoQoS

Monitoring Drops in LLQ

• Thresholds are activated in RMON alarm table to monitor drops in Voice Class

• Default drop threshold is 1bps

rmon event 33333 log trap AutoQoS description “AutoQoSSNMP traps for Voice Drops” owner AutoQoS rmon alarm 33350 cbQoSCMDDropBitRate.2881.2991 30Absolute rising-threshold 1 33333 falling-threshold 0 Owner AutoQoS

With AutoQoS


FrameRelay



• User can meet the voice QoS requirements without extensive knowledge about:

Trust boundary

CoS to DSCP mappings

Weighted Round Robin (WRR) & Priority Queue (PQ) Scheduling parameters

• Generated parameters and configurations are user tunable

Cisco AutoQoS Benefits Switch Platforms

Cisco Catalyst 6500, 4500, 3550, and 2950EI Switches



• Single command at the interface level configures interface and global QoS

Support for Cisco IP Phone & Cisco Soft Phone

Support for Cisco Soft Phone currently exists only on the Cat6500

Trust Boundary is disabled when IP Phone is moved / relocated

Buffer Allocation & Egress Queuing dependent on interface type (GE/FE)

• Supported on Static, dynamic-access, voice VLAN access, and trunk ports

• CDP must be enabled for AutoQoS to function properly

• Cisco Catalyst 2950 EI supports WRR, Strict Priority Scheduling, and Strict Priority Queuing

Automation with Cisco AutoQoS Switch Platforms



• Cisco Catalyst 6500 Switch

Global: set qos autoqos

Interface: set port qos autoqos <mod/port> voip [ciscosoftphone | ciscoipphone]

Trust Boundary: Set port qos autoqos <mod/port> trust [cos|dscp]

• Cisco Catalyst 3550 and 2950EI Switches

auto qos voip trust – QoS Labels in ingress packets are trusted

auto qos voip Cisco-phone – Extends trust boundary if IP Phone detected

• Cisco Catalyst 4500 Switch

Similar to Cat 3550/2950

Automation with Cisco AutoQoS Switch Platforms (Cont)

Command Line Interface



set qos enableset port qos mod/port cos 0set port qos mod/port cos-ext 0set port qos mod/port trust-ext untrustedset port qos mod/port trust-device ciscoipphoneset qos acl ip ACL_IP-PHONES trust-cos anycommit qos acl ACL_IP-PHONESset qos acl map ACL_IP-PHONES mode/port set port qos mod/port trust trust-cosset qos ipprec-dscp-map 0 10 18 26 34 46 48 56set qos cos-dscp-map 0 10 18 26 34 46 48 56set qos map 2q2t tx queue 2 2 cos 5,6,7.............

Automation with Cisco AutoQoS Switch Platforms (Cont)

Without AutoQoS

Configuring QoS for VoIP on Trusted & Untrusted Ports in the LAN

65006500 6500650065006500

65006500 65006500



Automation with Cisco AutoQoS Cisco Catalyst 6500 Series Switch With AutoQoS

set port macro 4/1 ciscoipphone 10 110 Port 4/1 has been fully configured for ciscoipphone.

Data vlan set to 10, auxiliary vlan set to 110, port based autoqos configured.

Global autoqos configured on all ports.

set qos autoqos

All ingress and egress QoS scheduling parameters configured on all ports. CoS to DSCP, DSCP to COS and IP Precedence to DSCP maps configured. Global QoS configured

set port qos autoqos 4/1 voip ciscoipphone

Port 4/1 has been fully configured for voip.Global autoqos configured on all ports

User enables AutoQoS

Generated by AutoQoS


65006500 6500650065006500

65006500 65006500



mls qos map cos-dscp 0 10 18 26 34 46 48 56mls qos!interface FastEthernet0/1Description to IP Phone mls qos trust CoS wrr-queue cos-map 4 5 priority-queue out switchport voice vlan 111 switchport access vlan 11 switchport priority extend cos 0

Map CoS Values in incoming packets to DSCP values

Ingress Classification set to trust CoS value received in the packet

Assign packets with CoS 5 to Queue 4 (Expedite Queue)

Enable Egress Expedite Queue

Enable Trust Boundary on the phone

Configuring QoS for VoIP on Trusted Ports in the LAN

Automation with Cisco AutoQoS Cisco Catalyst 3550 Series Switch

Without AutoQoS

65006500 65006500

35003500 35003500 35003500



Interface GigabitEthernet0/1mls qos trust device cisco-phonemls qos trust cosauto qos voip cisco-phonewrr-queue bandwidth 20 1 80 0wrr-queue queue-limit 80 1 20 1wrr-queue cos-map 1 0 1 2 4wrr-queue cos-map 3 3 6 7wrr-queue cos-map 4 5priority-queue out



You enable AutoQoS

Interface FastEthernet0/1mls qos trust device cisco-phonemls qos trust cosauto qos voip cisco-phonewrr-queue bandwidth 20 1 80 0wrr-queue min-reserve 1 5wrr-queue min-reserve 2 6wrr-queue min-reserve 3 7wrr-queue min-reserve 4 8wrr-queue cos-map 1 0 1 2 4wrr-queue cos-map 3 3 6 7 wrr-queue cos-map 4 5priority-queue out

You enable AutoQoS

Automation with Cisco AutoQoS Cisco Catalyst 3550 Series Switch With AutoQoS

65006500 65006500

35003500 3500350035003500



mls qosmls qos map cos-dscp 0 10 18 26 34 46 48 56wrr-queue cos-map 1 0 1 2 4wrr-queue cos-map 3 3 6 7wrr-queue cos-map 4 5wrr-queue bandwidth 20 1 80 0!Interface GigabitEthernet0/1Description Uplink to Trusted Sourcemls qos trust dscp!interface FastEthernet0/1Description to IP Phone mls qos trust CoS switchport voice vlan 111 switchport access vlan 11 switchport priority extend cos 0

Map CoS Values in incoming packets to DSCP values

Ingress Classification set to trust CoS value received in the packet

Assign packets with CoS 5 to Queue 4 (Expedite Queue)

Enable Trust Boundary on the phone

Configuring QoS for VoIP on Trusted & Untrusted Ports in the LAN

Automation with Cisco AutoQoS Cisco Catalyst 2950EI Series Switch

Without AutoQoS

65006500 65006500

35003500 35003500 35003500



mls qos map cos-dscp 0 8 16 26 32 46 48 56wrr-queue bandwidth 20 1 80 0no wrr-queue cos-mapwrr-queue cos-map 1 0 1 2 4wrr-queue cos-map 3 3 6 7wrr-queue cos-map 4 5!interface GigabitEthernet0/2 auto qos voip trust mls qos trust cos!Interface FastEthernet0/1 auto qos voip cisco-phone mls qos trust device cisco-phone


auto qos voip trust

You enable AutoQoS

auto qos voip cisco-phone

Automation with Cisco AutoQoS Cisco Catalyst 2950EI Series Switch With AutoQoS

65006500 65006500

35003500 3500350035003500



Agenda

• Introduction




• Summary

AutoQoS Deployment Case Study



QoS Deployment for VoIP

Goal: Deploy consistent, end-to-end QoS for VoIP

WANWAN

Classification & Trust BoundaryMarking / RemarkingEgress Queue SchedulingBuffer Management

Classification & Trust BoundaryMarking / RemarkingEgress Queue SchedulingBuffer Management

Intelligent Classification Bandwidth ProvisioningAdmission ControlShapingLink Fragmentation & InterleavingHeader Compression

Intelligent Classification Bandwidth ProvisioningAdmission ControlShapingLink Fragmentation & InterleavingHeader Compression

Layer 3 PolicingEgress Scheduling(Multiple Queues with WRR)Priority Queuing for VOIPBuffer Management

Layer 3 PolicingEgress Scheduling(Multiple Queues with WRR)Priority Queuing for VOIPBuffer Management

Access LayerAccess Layer Distribution LayerDistribution Layer

WAN



ApplicationClassificationApplication

Classification

PolicyGeneration

PolicyGeneration

ConfigurationConfiguration

Monitoring&

Reporting

Monitoring&

Reporting

ConsistencyConsistency

• Identify Traffic of Interest• Trust & Untrust

• Identify Traffic of Interest• Trust & Untrust

• Link Efficiency Mechanisms

• CoS to DSCP to Queue mapping

• WRR & WRED parameters

• Transport specific features

• Link Efficiency Mechanisms

• CoS to DSCP to Queue mapping

• WRR & WRED parameters

• Transport specific features

• Monitor the performance of Voice traffic

• Monitor the performance of Voice traffic

• Consistent end-to-end QoS across LAN & WAN

• Platform Consistency

• Consistent end-to-end QoS across LAN & WAN

• Platform Consistency

• Classes• Bandwidth requirements• High Speed Vs Low Speed QoS• Buffer Management

• Classes• Bandwidth requirements• High Speed Vs Low Speed QoS• Buffer Management

QoS Deployment for VoIP –Without AutoQoS

KeyElementsof QoS

Deployment



QoS Deployment for VoIP –Manual Approach without AutoQoS

In the WAN1. Identify applications and protocols of interest

Untrusted edge vs. trusted edge

2. Remark traffic based on classification

3. Determine how many classes should be configured, and what queuing should be enabled

4. Determine class bandwidth requirements

5. Configure transport specific features

Traffic Shaping, MLPPP & TX-Ring settings

6. Enable bandwidth specific QoS features

Header Compression & Fragmentation Settings (MLP/LFI or FRF.12)

7. Configure alarm and event settings for monitoring purposes



QoS Deployment for VoIP –Manual Approach without AutoQoS

In the LAN1. Identify Trust Boundary & Extended Trust

Boundary

2. Remark traffic based on classification

3. Determine CoS to DSCP and IP Precedence to DSCP mappings

4. Map CoS values to the different egress queues

5. Queue Size Settings & WRR weightsFE Vs GE ports

6. Determine CoS to Egress queue mapping

7. Configure QoS on a per port basis



Identify VoIPBearer & Control Traffic

Evaluate Network

Environment & Generate Initial Policy

One Command

VoIP Packet Drop AlertsCBQoSMIB

SupportFull LAN & WANInteroperability

QoS Deployment for VoIP– Automation with Cisco AutoQoS (Phase I)

Accomplish all of the above in just 4 steps1. Configure Interface / Sub-Interface Bandwidth

2. Configure IP Address

3. Enable AutoQoS (Trust Vs Un Trust)

4. Fine Tune Parameters, if required

TrafficClassification

PolicyGeneration

Provisioning

Monitoring

Consistency



QoS Deployment for VoIP - Single Step Approach Using Cisco AutoQoS

Enable Cisco AutoQoS for VoIP on the switch1. Cisco Catalyst 2950 and 3550 Switches: enable Auto QoS on the interface

auto qos voip [trust | cisco-phone]2. Cisco Catalyst 6500 Switch: enable Auto QoS on the port

set qos autoqosset port qos autoqos <mod/port> voip [ciscosoftphone | ciscoipphone]set port qos autoqos <mod/port> trust [cos|dscp]

3. Parameter Tuning

Monitor Cisco AutoQoS on the Switch1. sh mls qos interface <x> [buffers | queuing]

(above command not supported on 2950)2. show mls qos maps cos-dscp3. show auto qos interface <x>

In the LAN



Enable Cisco AutoQoS for VoIP via Router CLI

1. Configure IP address on interface or sub interface

2. Configure bandwidth on interface or sub interface

3. Enable “autoqos voip [ trust | fr-atm ]” on PVC, DLCI or interface

4. Parameter tuning & Configuration modifications

Monitor Cisco AutoQoS on the Router

1. show policy-map interface <x>

2. show auto qos [interface <interface type>]

3. show rmon [alarms | events]

Monitor Cisco AutoQoS using QPM 3.0

QoS Deployment for VoIP - Single Step Approach Using Cisco AutoQoS (Cont)

In the WAN



QoS Deployment for VoIP –Class-Based QoS MIB (CBQoSMIB)

ftp://ftp.cisco.com/pub/mibs/v2/CISCO-CLASS-BASED-QOS-MIB.my

• Provides read access to configuration and statistical information for MQC based QoS Policies

• Provides MQC configuration information and application statistics• Provides CBQoS statistics on a per-policy/per-interface or PVC

basis• Monitor pre- and post-policy bit rates on a device

SNMP

Interface 1Outbound Policy

CBQoSMIB

Provide CBQoS Statistics & Configuration Information Per policy

Interface 3InboundPolicy

Interface 2Inbound Policy



QoS Deployment for VoIP – Monitoring & Reporting with QPM 3.0

• Central web based tool• QoS config guidance• Templates, customize • Deployment control• File export

• Monitoring• Reports• Troubleshooting• Multi-device, global

• Device-Based• Single Command• Intelligent

Classification• Reporting via Syslog

& Traps

Cisco Works QoS Policy Manager

interface Multilink1

ip address 10.1.61.1 255.255.255.0

ip tcp header-compression iphc-format

load-interval 30

service-policy output QoS-Policy

ppp multilink

ppp multilink fragment-delay 10

ppp multilink interleave

interface Serial0

–bandwidth 256

–Ip address 10.1.61.1 255.255.255.0

–auto qos voip

CLI



BronzeBronze

SilverSilver

GoldGold

QoS Deployment for VoIP - Monitoring and Reporting with CBQoSMIB & QPM 3.0

CMPrePolicyPkt

CMPrePolicyByte CMPostPolicyPkt CMDropPkt

CMDropByte

CMNoBufDropPkt

Drop=Pre- Post

After QOS Policies have been appliedBefore QOS

BronzeBronze

SilverSilver

GoldGoldBronzeBronze

SilverSilver



QoS Deployment for VoIP – An example using QPM 3.0



Agenda

• Introduction




• SummarySummary



Highlights –Cisco AutoQoS in the WAN

• Simplifies QoS configuration for VoIP

Phase I – a single command enables Cisco QoS for VoIP

• End-to-end simplification, automation, and intelligence

Classifies VoIP bearer and signaling (H.323, Skinny, H.225 Unicast, SIP & MGCP) traffic

Provisioning based on Cisco Best Practices

• Generated parameters and configuration can be user modified



Highlights –Cisco AutoQoS in the WAN (Cont)

• Intelligent policy generation

Based on available bandwidth & underlying L2 technology

Enables IP RTP Header Compression and Frame Relay Traffic Shaping, if required

Decides on fragmentation settings (FRF.12, MLP/LFI), if required

• Supported on FR, ATM, HDLC, PPP & FR-to-ATM links

• Provides RMON alerts, if VoIP packet are dropped



Highlights –Cisco AutoQoS in the LAN

• Simplifies QoS configuration for VoIP

Phase I – a single command enables Cisco QoS for VoIP

Support for Cisco IP Phone & Cisco SoftPhone

• Optimal Voice Performance

Parameters based on Cisco Best Practices, extensive lab testing, and input from a broad base of AVVID installations



Highlights –Cisco AutoQoS in the LAN (Cont)

• Intelligent Policy generation

Automatically decides on trust and extended trust boundary settings

– User can bypass telephone and connect their PC directly to the switch

– Disables trust when IP phone is relocated

Configures CoS to DSCP to Queue mapping

Decides on WRR settings

• Supported on Static, Dynamic-access, voice VLAN, and trunk ports



The Cisco Advantage –Most Comprehensive QoS Functionality Available

First to ship QoS Automation & Simplification

First to ship Advanced Differentiated Services Toolkit in 2000

Comprehensive QoS language framework via MQC

First to ship Intelligent Application Level classification (Cisco Network Based Application Recognition - NBAR)

Complete QoS monitoring & reporting support with Cisco Works QPM 3.0

Broadest platform support (switch & router space) for QoS

Full interoperability across the LAN & WAN DiffServ nodes

Only vendor to ship a Complete End-to-End Differentiated Only vendor to ship a Complete End-to-End Differentiated Services solutionServices solution



Availability

Platforms Software

Switches

Cisco Catalyst 2950EI

Cisco Catalyst 3550Cisco IOS Software Release 12.1(12c)EA1

Cisco Catalyst 4500 Cisco IOS Software Release 12.1(19)E

Cisco Catalyst 6500 Cisco Catalyst Operating System 7.5.1

Routers

Cisco 2600 Series

Cisco 2600XM Series

Cisco 3600 Series

Cisco 3700 Series

Cisco 7200 Series

Cisco IOS Software Release 12.2(15)T



References

QoS Home Pagehttp://www.cisco.com/go/qos

CiscoWorks QPM 3.0http://www.cisco.com/en/US/products/sw/cscowork/ps2064

AutoQoS Technical Documentation for Cat 3550 & 2950http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12112cea/3550scg/swqos.htm

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat2950/12112cea/2950scg/swqos.htm

AutoQoS Technical Documentation for Cat 6500http://lbj.cisco.com/push_targets1/ucdit/cc/td/doc/product/lan/cat6000/sw_7_5/confg_gd/autoqos.htm#10002

http://www.cisco.com/go/qos

http://www.cisco.com/en/US/products/sw/cscowork/ps2064

http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12112cea/3550scg/swqos.htm

http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12112cea/3550scg/swqos.htm



1111 © 2002, Cisco Systems, Inc. All rights reserved. AutoQoS Technical Presentation, 1/03 111 © 2002, Cisco Systems, Inc. All rights reserved. AutoQoS.

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