100007956 SR Overview Training for WCDMA v2

Jim Hurd, Manager, IPD Mobile Solutions Verification

October, 2007

IP/MPLS RAN Transport Featuring

the 7705 SAR and 7710/50 Product Overview Training for W-CDMA R&D

All Rights Reserved © Alcatel-Lucent 2007 2 | 7705 & 7710/7750 Product Overview for WCDMA UIIV| October 2007

SR 7710/7450/7750 Product Intro

1


Next Generation Service Aggregation Platform

TDM Switching

Packet as add-on

APS/EPS based Redundancy

Traditional Aggregation Platforms

What p

rofita

ble

b

usin

ess s

erv

ices

requ

ire fro

m

sw

itches?

Seamless Density

Scalable routing protocols

Service-based billing models

Layer 2 point-to-point VPNs

Scalable Multicast

Auto Discovery / Provisioning

Service-aware OAM&P tools

Advanced traffic filtering

Enforceable per-service SLAs

Scalable service provisioning tools Non-stop Services

Evolving standards for services

Flexible service tunnels

MPLS-based services

Next Generation Service Aggregation Platform

IP Transformation

Introduction of Service Concept


RNC

Vodafone Quad Play Service Delivery Architecture solution

POC1 7750-SR

BTS

Node B

CO Site Scenarios POC2 7750-SR

MPLS on top of

xWDM

Internet Ethernet

Ethernet / BTV

Ethernet/BTV/VOD

POC4

7705-SAR

7705-SAR

PDH, SDH (LL, MW)

Eth Microwave

BSC

CPN R2

POC3

MPLS on top of

PDH, SDH (LL, MW)

Eth Microwave

Node B

Node B

7750-SR @ POC1 Consolidates:

BEP R1.1 Aggregation

BEP R1.0 Hand-off

BNG (Centralized)

BTS

Node B

Node B

GE

BiDi

CWDM

Wholesale xDSL

BTS

Consolidates: BEP R1.1 Aggregation

BEP R1.0 Hand-off

BNG (Distributed)

CWDM

G.703/4 GSM+R99

GE

SyncE / 1588v2

BTS

BEP R2.0 M/W Radio

BEP R2.0 M/W Radio

Ethernet / Femto

Ethernet / BTV / Femto

Ethernet/BTV/VOD/Femto


Transforming Mobile Networks with IP –

7750 SR Delivers Key Mobile Consolidation Enablers

Enabling the migration of legacy voice services onto the IP/MPLS backbone

and supports advanced rich, high volume data services

2.5G

UTRAN

WiMax

Node B

BTS

BTS

2G

UMA

Internet

IP/MPLS

Backbone

7750 SR

7750 SR

7750 SR

Core Network PSTN

7750 SR

MSC

Media Gateway

Media Gateway

Optical

Network

NGN+ IMS

7750 SR provides circuit switch reliability and quality:

High availability

& reliability

Guaranteed H-QoS

Flexible, scalable portfolio

Powerful management & engineering tools

5620 SAM


Validated by

Exact

Alcatel-Lucent

Recognized Leadership in High Availability for Routing and Consumer/Business Services

High Availability Capability Key Features/Functions

Router Hardware Redundant common equipment: fans, power supplies, switch fabric, Control Processor Module

Link Layer Protocols x-module Link Aggregation, multi-chassis APS, BFD

Non-Stop Routing Protocols IPv4: OSPF, IS-IS, BGP, ECMP, VRRP, PIM, IGMP

IPv6: OSPFv3, IS-IS, BGP4+

Non-Stop VPN Services Non-stop pseudowires (Ethernet, Frame Relay, ATM)

Non-stop VPLS

Non-stop IP-VPNs MPLS Primary and standby LSPs

Fast re-route

Non-stop RSVP-TE, LDP Graceful Restart GR Helper for routers incapable of non-stop routing

In-Service Software Upgrades Non-stop routing/services-enabled, in-service software upgrades

* Click on product photos to get reports

7450 ESS 7750 SR

http://www1.alcatel-lucent.com/bnd/news/docs/7750SR_HA_BTExact_Evaluation_Report.pdf

http://www1.alcatel-lucent.com/bnd/news/docs/7450_ESS-7_Test_Report.pdf;jsessionid=G2230QV2IDUZTLAWFRSHJHFMCYWGQTNS


Worldwide Deployments

• Alcatel-Lucent is #2 worldwide in IP/MPLS Edge Router (Ovum) and Carrier Ethernet Switch/Router (Heavy Reading)

• Alcatel-Lucent IP portfolio has more than 150 customers in 65+ countries

Proven Scalability and Interoperability and Stability

ISOCORE, UNH, BTexact, MEF, EANTC, etc

Fully-featured IP-VPNs, VPLS, and VPWS

Full set of PW for ―any-G‖ grooming over Ethernet/MPLS

Availability

Non-Stop Services and ISSU

OAM/Service Assurance, Service Mirroring

Multi-layer switching and routing

Combined L2+L3 and Ethernet density reduces boxes

Granular QoS and SLA management

Hierarchical queuing and scheduling

Full statistics and accounting

Fully Managed

5620 SAM simplified provisioning and OSS integration

Service Assurance Test scheduling and fault correlation

Intuitive graphical interface with physical and logical topology

7750 SR: Differentiated for Ethernet Backhaul and Mobile Backbone

7750 SR-12


IP Portfolio

Metro Service

Edge &

Aggregation

Functionality

Multiservice

Edge/Core

Alcatel-Lucent 5620 Service Aware Manager

Alcatel-Lucent 5750 Subscriber Services Controller

200 G - 400 G

Full Duplex Capacity

7750 SR-1

7710 SR-c4

7750 SR-7 7750 SR-12

7450 ESS-1 7450 ESS-7 7250 SAS

100 G - 200 G 20 G 9 G 6.4 G

7450 ESS-12

12 G

7710 SR-c12 7710 SR-c4

* Supports 400 G only

7450 ESS-6

80 G

WCDMA

has WCDMA

has

WCDMA

has


7705 Service Aggregation Router

Common IP/MPLS O/S (“SR OS”)

Common Management (5620 SAM)

SAR family SAR Fixed

SAR 8

SAR 22

ESS family ESS 1

ESS 6

ESS 7

ESS 12

SR 1

SR 7

SR 12

“Any G” aggregation

& services

Metro Ethernet

services

Service Routing

Common „Look & Feel‟ (GUI)

Common MIBs & 3rd party interfaces

Common CLI

Common protocol stacks & features

MPLS, IPv4/6, LDP, RSVP-TE, FRR etc

Common feature/functionality,

architecture principles & services

Pseudo-wires, SAPs & SDP‘s, Traffic

Management, Service Management,

Nodal security etc

The SAR “Platform”

Feature-rich, consistent management and „IP operating system‟;

Single, consistent next-generation IP/MPLS solution. Highly differentiated in the market (QoS,

Reliability, OAM, Service Management)

End-to-end consistency at the control plane, management plane and dataplane levels

Individual products / families optimized for:

Cost, form-factor, scale, performance, densities, interfaces etc for the specific target market.

SAR: 1U/2U, 10‖ deep, front access, very low-cost, 8 - 224*T1/E1, 10/100/GigE, POS/ATM for ‗Any G‘

aggregation with seamless evolution from TDM/ATM to MPLS and full IP services.

SR c4

SR c12

SR family


7710 SR-c4 and SR-c12

Supported Interface modules

1 2 3 4

5 6 7 8

9 10 11 12

System Console

1 2 3 4

5 6 7 8

9 10 11 12

System Console

Possible MCM-MDA

positions

Possible CMA

positions

4.5G

MCM

12G

Control/

Fabric


Redundant ESS6

Configuration:

•Redundant ctrl,

•Single IOM-10G

•Combo MDA:

• 10G up

•10* 1G aggregation

WCDMA has one of these too!


7750 Hardware Architecture

2


• Up to 10 Gb/s physical

interface termination

• Ethernet,

SONET/SDH,

channelized

SONET/SDH

• Pluggable interface

module and pluggable

optics

• 20 400 Gb/s (full

duplex, redundant)

fabric/system capacity

• Two distributed control

plane CPUs per card:

for system control,

centralized protocol

processing and

management

• Layer 2/Layer 3 encapsulation

• IP/MPLS/MAC forwarding lookup

• Arbitrarily deep packet inspection, editing and filters

• Queuing, scheduling, buffer management

• Distributed control plane CPU:

local processing of critical control plane functions

• 10 Gb/s wire-rate with services

• 20 Gb/s I/O Module,

scaling to 40 Gb/s (12 and 4-slot chassis)

Media

Dependant

Adapter

(MDA)

Switch Fabric

and Central

Processor

Module

(SF/CPM)

Flexible & Fully

Programmable

Fast Path

Forwarding

Technology CPU

CPU

Alcatel 7750 Service Router

System Components

I/O Module

CPU



I/O Module (IOM)

MDA

1

MDA

2 Switch

Tap

To Fabric B

To Fabric A

To Fabric B

To Fabric A

Two 10 Gb/s

hot-pluggable

MDAs per IOM

flexible & fully programmable

forwarding complex performs packet

processing at line rate (10 Gb/s) redundant connections

to switch fabrics (12-slot

chassis)

IOM CPU/memory

resources for distributed

control plane, stats, etc.

512MB

DRAM

IOM

Control

CPU

Switch

Tap

FlexPath

P

FlexPath

P

Pkt.

RAM

CAM

Ctrl.

RAM

Ctrl.

RAM

FlexPath

Q

FlexPath

PCAM

Pkt.

RAM

Ctrl.

RAM

FlexPath

Q

FlexPath

Forwarding

10 Gbps

Full-Duplex

FlexPath

P

FlexPath

P

Pkt.

RAM

CAM

Ctrl.

RAM

Ctrl.

RAM

FlexPath

Q

FlexPath

Q

FlexPath

PCAM

Pkt.

RAM

Ctrl.

RAM

FlexPath

Q

FlexPath

Q

FlexPath

Forwarding

10 Gbps

Full-Duplex

FlexPath

P

FlexPath

P

Pkt.

RAM

CAM

Ctrl.

RAM

Ctrl.

RAM

FlexPath

Q

FlexPath

PCAM

Pkt.

RAM

Ctrl.

RAM

FlexPath

Q

FlexPath

Forwarding

10 Gbps

Full-Duplex

FlexPath

P

FlexPath

P

Pkt.

RAM

CAM

Ctrl.

RAM

Ctrl.

RAM

FlexPath

Q

FlexPath

Q

FlexPath

PCAM

Pkt.

RAM

Ctrl.

RAM

FlexPath

Q

FlexPath

Q

FlexPath

Forwarding

10 Gbps

Full-Duplex


IOM 1 IOM 10

400 Gb/s

(full duplex)

Switch Fabric

400 Gb/s

(full duplex)

Switch Fabric

Two SF/CPM

Switch/CPU cards

400 Gb/s

(full duplex)

fabric/system

Backplane

1 20

10 I/O Modules

(IOM)

20 Media Dependant

Adapters (MDA)

CPU DRAM

CPU DRAM

CPU DRAM

CPU DRAM

Flexible Fast Path

forwarding complex

IOM local CPU for

Distributed Ctrl

Plane


12-slot Chassis System Composition

CPU


SF/CPM

20 Gb/s Base IOM


Interfaces and MDAs

20Gb/s Base IOM

2 x 10 Gb/s MDAs per slot

Common, flexible set of Ethernet,

SONET/SDH and Channelized interfaces

across all chassis options

Pluggable Optics per MDA


SFPs

Small Form-factor Pluggable transceiver

Cost Effective

Only Populate required SFPs

Mix and match different types on a

single MDA

SFPs are Customer Replaceable

Bigger choice of optical media

Alcatel-Lucent strongly recommends the use of SFPs that are tested

and verified by Alcatel-Lucent

Check product documentation at the time of purchase


Network and Service Availability for Mobile Transformation

Field-Proven: Actual data from $1Bn of installed 7x50 systems

System Config Downtime Availability (%)

Fully Redundant 0.23 min/yr 99.999956

Non-Redundant I/O 3.13 min/yr 99.999404

99.999%+ Network Reliability

High Availability is becoming increasingly key for mobile operators:

Can lessen subscriber churn

Supports device substitution trend

Service Router products have differentiated feature set to support highly reliable operation

Real world data supports independent lab test results


7705 Product Overview

3

All Rights Reserved © Alcatel-Lucent 2007 21 | 7705 Service Aggregation Router | October 2007

The 7705 Service Aggregation Router (SAR)

Generational leap in

density/performance over existing

aggregation switches

Services-orientation of an IP/MPLS

platform +

Cost-optimized carrier-class aggregation and transport over IP/MPLS networks

Future-proof architecture to address evolving aggregation requirements

Architected and implemented around services delivery

(e.g., queuing, provisioning, troubleshooting and billing)

Building on solid Service Router-OS base for extensive, hardened feature set

and interoperability on Day 1

Best New Product Award 2007


7705 SAR Attributes at a Glance: A Class-Leading Platform

Strong Differentiation versus the

Competition

Reduced cost via converged network

transport

Native service transport of 2G/3G/4G

traffic via pseudowires

TDM (T1/E1)

ATM/IMA (n x T1/E1)

Ethernet (10/100/1000)

Manageable IP/MPLS Infrastructure

end-to-end

Highest density and scalability

2 RU version with up to 96 T1/E1 ASAP

ports (to 192 in 2009)

Flexible network link options

FE/GE

NxT1/E1 MLPPP

OC-3/STM-1 POS (3Q 2008)

Highest Service Availability

Available redundant core/fabric

Redundant uplinks

Redundant sync and power feeds

Redundant PW and FRR (3Q 2008)


The Principal Platforms in Brief

7705 SAR 9500 MPR

7750 SR 7710 SR 5620 SAM

Technology

Inheritance

Technology

Sharing

2G, 3G, 4G Traffic

Adapted onto a normalized IP/MPLS infrastructure

Full range of first mile media

Compact, economical yet feature-rich

10 -> 400G platforms, full routing and signaling

3rd generation Service Routers

Tremendous market acceptance at the IP/MPLS edge

MTSO and larger hub roles

Packetized, traffic-aware microwave

Adapts to atmospheric conditions

Maximizes application “goodput”

Simple, powerful GUI-based OAM

Recognized as benchmark in industry

Service assurance for SLA enforcement

Rapid learning curve for operations


A Closer look at the 7705 SAR

4


Reducing Cost via Pseudowire Tunneling over Economical Packet Networks

Static or Dynamic (T-LDP) Establishment

ATM

TDM

7710/ 7750 SR,

7670 RSP

7705 SAR

BTS

Telemetry

Ethernet/

MLPPP

Node B

Ethernet

TDM

Ethernet

TDM Pseudowire

Ethernet Pseudowire

BSC

RNC

ATM

ATM Pseudowire

Cell Site MTSO

MPLS Tunnel

PSN/Metro

Ethernet/

SONET/SDH

MPLS Pseudowires Allow Convergence and Dynamic Bandwidth Allocation

Over Multiple Media, Enabling Low Cost Backhaul

Ethernet/

MLPPP


Internet Enhanced Service (IES)

Layer 3 direct Internet access service where the customer is assigned

an IP interface for Internet connectivity.

VPWS

Layer 2 point-to-point service:

Ethernet (Epipe), ATM (Apipe) and TDM (Cpipe) Emulation (PWE3)

Frame Relay Emulation (Fpipe) & Interworking (Ipipe)

Virtual Private LAN Service (VPLS)

Layer 2 multipoint-to-multipoint VPN.

Virtual Private Routed Network (VPRN)

Layer 3 IP multipoint-to-multipoint VPN service as defined in RFC 4364

(was RFC 2547bis)

Service Types

Supported

on 7705


Why is QoS and Especially Delay and Delay Variation Important ?

End-to-end delay budgets are a strict operator requirement

RAN transport delay is a significant contributor to end-to-end delay

Delay variation (jitter) is also important in dimensioning playout buffers

Hybrid approaches can be used to mitigate and protect delay-sensitive traffic

versus bulk, best effort

Convergence and phase stability of packet-based sync and timing protocols

depend on low delay and jitter effects on packet/timestamp arrivals

Ultimately, to fully leverage the packet-based RAN a range of traffic types

must be accommodated: legacy, sync, conversational, messaging, streaming,

best effort, OAM, etc.

Minimizing packet loss, delay and delay variation for certain traffic flows is crucial


Overview Of Traffic Management on SAR / SR

Traffic can be classified based on multi-field, DSCP, Dot 1p/q, timeslot, ATM

VC, port, etc.

Policing and queuing takes place based on classification

Queuing is scalable and flexible: strict priority, exhaustive and optionally

hierarchical

Traffic can be shaped towards the fabric

QoS is a key differentiator on 7705 SAR: sophisticated yet flexible —

configurable to fit the requirements of the PSN

IP/MPLS Backbone Ingress Egress Network

Egress Network

Ingress

Classification

Policing

Shaping, at ingress and egress Re-marking

as needed Queuing and

Scheduling


Network Control

Traffic Classification Example

Description AAL Cat. PCR SCR/MCR

NBAP/C AAL5 rt-VBR 85k 43k

NBAP/D AAL5 rt-VBR 43k 22k

NodeB OAM AAL5 UBR N/A N/A

UP-DS AAL2 rt-VBR 1920k 478k

UP-NDS AAL2 nrt-VBR 1920k 710k

HSxPA AAL5 UBR+ N/A 200k

3G Sig / NW Sync

2G Traffic (all)

3G R99

e.911

3G HSxPA

3G Synch

Management

Exp.CoS-7

Exp.CoS-6

Exp.CoS-5

Exp.CoS-4

Be.CoS-3

Be.CoS-2

Be.CoS-1

Be.CoS-0

• Network Control gets the highest treatment under all circumstances • No NW no Service; traffic includes Routing Updates, MPLS Signalling, …

• Assure 3G Node-B to RNC signalling and NW Synch. always pass thru

• Service 2G/3G Traffic bundle (including 2G signalling, GPRS/EDGE, Voice,…)

• Service 3G High Speed Data (HSDPA)

• Management and 3G Synch are all served after ‗Expedited‘ Traffic

Expedited/Best Effort Scheduling: Priority

CIR / PIR Scheduling: In / Out-of-Profile, SLA

Check

RAN Vendor -X


Network Dynamic Resiliency Solutions

7705

SAR

X

9500

MPR

Controller

MTSO

Resilient Networking is Built on a Resilient Platform

Multi-chassis

APS, LAG

<50 ms Restoration via

Fast Reroute (FRR)

Global Restoration via

Traffic Engineered,

Disjoint, Secondary

Switched Path

Available uplink

Layer 2 protection:

Ethernet: LAG

T1/E1: MLPPP

Static to Dynamic

Pseudowire

Interworking

End-to-End Service Management

Traffic Engineering Tools to Model Failures

5620


Raising the Bar: Pseudowire Redundancy (roadmap, not all in 7705 rel 1.0)

Local precedence indicates preferred pseudowire for forwarding

Pseudowire status exchanged end to end to notify PEs of operational state of both

pseudowires and access points

Switch to standby initiated on unrecoverable node failure or link failure

Switchover synchronized with multi-chassis APS for powerful combination

Alcatel-Lucent driving standardization efforts in IETF

7705

SAR

Controller

MTSO

Active Pseudowire

Standby Pseudowire

Switchover Synchronized with

Multi-chassis APS

Alcatel-Lucent Product Differentiator


More Crucial than ever with Transition to Packetized, Distributed Network

Security

Node Access

UserID/password-based authentication and authorization

Exponential login backoff for brute force attacks

Local or remote storing of user info

Remote authentication/ authorization via RADIUS and TACACS

SSHv2, sFTP and SNMPv3

Secure open interfaces

Syslog

Capture security logs on local or remote server

Alarm on suspicious sequence of operations

Nodal Attack

Basic firewall with filtering of control plane traffic

DoS attack prevention (rate-limiting and prioritization)

Data security

Transfer over peer-to-peer tunnel (MPLS)

MD5 authentication

No broadcast of data over Ethernet

Sequence numbers prevent replaying of data

Statistics available to suspicious behavior


Synchronization

Synchronization is as basic to network operation as power and grounding

All-packet infrastructure brings special challenges

Adaptive clock recovery can be used to relay service clock and synchronization interface

Effective network QoS is important to speed convergence and lock in phase

Network engineering guidelines are available to ensure performance

The 7705 SAR is fully hardware-ready for both sync Ethernet and 1588v2

7705

7750

7710

Adaptive

Primary

Reference

Clock

BSC/RNC MSC/MGW

MTSO Cell Site

Backhaul

Aggregation

Point PDH/SDH

ATM/IMA

L1 Transport

(Ethernet)

ATM/IMA

TDM

L1 Transport

(Ethernet)

Adaptive

TDM

Practical, Tested Synchronization Solutions


RAN Backhaul Timing Distribution Models

PRC

Cell Site

Access

(Leased Line,

xDSL,

GPON,

Microwave,

Optical Ethernet)

Cell Site Gateway

BTS/Node B

TNL

Access Aggregator Aggregation

Network

(Leased Line,

Optical Ethernet)

Mobile Aggregation

Site Gateway

BSC/RNC

Core

Network

Case 1

Case 3a

Case 3b

Case 4

Case 5

TNL

Timing provided through Synchronous L1 technology

Timing provided using Timing over Packet technology

PRC

Case 2

PRC

PRC

PRC

PRC

PRC

PRC

Industry focus has been on cases 3a&b


Robust, Service-Aware OAM Supports Transition to All-IP

Simplify network operations with robust tool set for reactive & proactive

network operation and maintenance end-to-end

Service Assurance Agent — performs regular OAM operations and gathers results

Defect detection, proactive connectivity verification and performance monitoring

Provides/coordinates OAM at relevant levels in IP/MPLS network

BTS

2G

WiMAX

Other Licensed/ Unlicensed Radio Access

Node B

3G

Tunnel LSP

MPLS Aggregation MPLS

Access

Hub

Cell Site

MTSO

VLL / PW Level

e.g., BFD, VCCV, PW status

Service Level

e.g., ATM OAM, SDP-Ping

Pseudowires

Tunnel / LSP Level

e.g., LSP Ping & Traceroute Service Mirroring

e.g Monitor, RAN Analyser Performance Metrics

e.g. Service Assurance Agent


Auto-Discovery & Provisioning (ADP)

Just plug the network/uplink cables to 7705, AADP runs over both MLPPP and Ethernet links

No (pre-)provisioning is required, discovery phase between MSN and 7705 is automatic

For further configuration, pre-defined templates used

Apply Template-3 to 7705@Cell-Site-17: 3 x T1 2G, 4 x T1 IMA 3G

Initial Configuration

AADP Advertisement Protocol

TDM/Eth

MSN

7705 SAR

Telemetry

GigE

ATM /Eth

BSC

RNC

Metro Ethernet GigE

Cell Site MTSO

BTS

Node B

LEC

SONET N x T1

MLPPP

1 2

Discovery of the node by 5620

3

7705

7705

7705

MSN

MSN + 5620

5620

5620


Our management capability is proven…

Source: RHK-Ovum

Improve provisioning efficiency by 69% Service Provisioning

33 minutes

10 minutes 5620 SAM

Competitor EMS

Service Restoration

Source: RHK-Ovum

MTTR

Fix Identify

Competitor Problem Isolation

13 minutes

MTTR

Identify

5620 SAM Problem Isolation

8.3 minutes

Improve Restoration Time by 36%

MTTR = mean time to repair

Fix


5620SAM: Proactive SLA Verification/Testing and Reporting

_______________________________________________ IPD.MobileSolutions mailing list [email protected] http://mailman.usa.alcatel.com/mailman/listinfo/ipd.mobilesolutions

creation and archival of test suites which can be scheduled to run at specific time intervals

(against all services relevant for mobile operators, such as ATM/TDM/Eth pseudowires),

collect results, compare the results against the specified thresholds (SLA metrics), and

return results in a form of report or raised alarm(s).

with the simple steps in the form of policy test creation, target selection, and schedule

selection, the tests can be made uniform across the network and available to all operators,

and run unattended, while their results will be reported.

mailto:[email protected]



http://mailman.usa.alcatel.com/mailman/listinfo/ipd.mobilesolutions


NETWORK

ANALYSER

NOC

Service Troubleshooting and Monitoring

Alcatel 7x50 Series OA&M tools reduce truck-rolls, conserve technical

resources and comply with government regulations

Ingress or egress service

mirroring

Local or remote egress point

Full or partial packet

mirroring (slice size)

Conserve core bandwidth

Specific wire-tapping

Removes the need for expensive

out-of-band monitoring/analysis

Compliance with Lawful

Intercept requirements

MIRRORED

TRAFFIC

IP/MPLS CORE

CUSTOMER TRAFFIC


Documentation

Product information:

http://aww22.alcatel.com/marketing/products.jhtml

Documentation and Software Downloads:

http://www1.alcatel-lucent.com/comps/pages/carrier_support_osds.jhtml

31NAN0083 Traffic Management Features of 7750 Service Router and 7450 Ethernet

Service Switch Release 3.0

31NAN0088 Services Overview of The 7750 SR

31NAN0090 7750 Troubleshooting Guide

31NAN0091 7750 SR VPRN Provisioning Guide


backup slides

5


AP

AP Service Differentiation with H-QoS for Compelling Service Attributes

IP/MPLS Service Network

7750 SR

GE

BaseStn #1

CIR = 30 Mb/s

PIR = 30 Mb/s

Voice

Video

Internet

BaseStn #2

CIR = 1 Mb/s

PIR = 1 Mb/s

Data

Voice

Internet

GigE

GigE

Prioritize Services and

Applications Using Advanced

Service-Aware QoS

Service-Aware H-QoS

Allows For The Creation of

Tailored Service Bundles

Individual Applications

Get Reserved Bandwidth

BaseStation Aggregate

Traffic Parameters

•Ethernet Access Transport Network

VLAN2

VLAN1

AP

CE

CE

PE

PE

Pure class-based queuing does not allow fairness

Current TDM and ATM backhaul solutions provide b/w per destination

IP backhaul can provide class-of-service distinction but where congestion occurs still need fairness and bandwidth policies for base stations


Dual Parented H-QoS: Per-class and Per-destination control

Combination of per class H-QoS with

the per ―subscriber‖ H-QoS provides

us with a class based scheduling

model that will allow

Each application to be prioritized based on

its level regardless of location or subscriber

Each subscriber will be defined with its own

rate for all of its applications.

service queues are dual-parented

Every queue will be parented by the class it

belongs to and that will define its priority

Every queue will also be parented by the

subscriber scheduler defining the maximum

amount of BW allowed for ALL of that

subscriber‘s queues.

VOIP

P1

P2

P3

P4

Port

VOD

HSI-Prem

HSI-Reg

Tower 1 Tower 2 Tower 4 Tower 3

T4:data T3: data

T1:Video T2:Video

T3:Video T4:Video

T1:data T2:data

T1:Voice

T4:Voice

T2:Voice T3:Voice


Strict / Weighted

Rate Limiting

Scheduler

Strict / Weighted

Rate Limiting

Scheduler

Strict / Weighted

Rate Limiting

Scheduler

Strict / Weighted

Rate Limiting

Scheduler

Strict / Weighted

Rate Limiting

Scheduler

Queue

Queue

Queue

Queue

Queue

Queue

• 3 levels supported

• Allows lower priority

traffic to make use

of unused bandwidth

when higher priority

traffic is below CIR

Hierarchical Schedulers

Multi-tier Scheduling (Hierarchical QoS)


SR/ESS QoS Hardware Features

The SR/ESS provides:

Per-service, per-class, ingress queuing and shaping features

Configurable ingress buffering up to 200 mSec at 10 Gbps

Egress buffering, up to 200 mSec at 10 Gbps

Up to 32 ingress queues per SAP; each queue has configurable CIR, PIR, CBS,

MBS, and HPO and forwarding class attributes*

8K ingress and 8K egress queues for SAP.

Three Major Components:

Traffic classification

Classification and marking

Buffer memory management

Default buffer allocations, queue attributes and WRED slope definitions

Traffic scheduling

Queue scheduling


Hierarchical Scheduling

Suppose the CIR and PIR of three service ingress queues corresponding to

Premium, Expedited and Bulk services are configured as follows:

Premium: CIR = 10 Mbps, PIR = 10 Mbps

Expedited: CIR = 20 Mbps, PIR = 40 Mbps

Bulk: CIR = 0 Mbps, PIR = 100 Mbps

Under Basic scheduling, each of the queues can burst up to its specified PIR,

which means up to 150 Mbps can enter the service through the three queues.

Under Hierarchical Scheduling, a superior or “parent” scheduler can be

created for the Premium, Expedited and Bulk queues which limits the overall

rate of all the queues to (for example) 100 Mbps. With Virtual Scheduling,

customers will be able to send in any combination of Premium, Expedited and

Bulk traffic conforming to their specified PIR values and not to exceed 100

Mbps in total.

Multi-tier Scheduling (Hierarchical QoS)


Default

Class

Type

FC ID FC Name

FC

Designation

Definition

High

Priority

(Premium)

7

Network

Control

NC Intended for network control traffic.

6 High-1 H1

Intended for network control traffic or delay/jitter sensitive

traffic.

5 Expedited EF

Intended for delay/jitter sensitive traffic.

4 High-2 H2

Assured

3 Low-1 L1

Intended for assured traffic. Also the default priority for network

management traffic.

2 Assured AF Intended for assured traffic.

Best

Effort

1 Low-2 L2

Intended for best effort traffic.

0 Best Effort BE

Forwarding Classes Defined on the Alcatel SR/ESS


MLPPP

Managed, Multiservice Backhaul using Existing Transport or Ethernet

TDM

7750 SR

MPLS Tunnel (over PSN)

7705

SAR

BTS

Telemetry,

Site

Survellance

Ethernet

Node B Ethernet

TDM

Ethernet

TDM PW

Ethernet PW

BSC

RNC

MLPPP

ATM PW

Metro Ethernet GigE

Cell Site MTSO

Leverage available Ethernet Connectivity to Metro Ethernet

- Lowest cost backhaul

5620

NxT1 MLPPP PDH/SDH grooming

NxT1 or OC3ch

MLPPP


IP RAN aggregation changes resiliency mechanisms in the network:

Network/Link Resiliency

APS, LAG, ECMP, Sub-second VRRP, etc

Multi-chassis redundancy and synchronization (MC-LAG, MC-APS)

Sub-50ms MPLS fast reroute

Node Resiliency

Withstanding a control failure: Non-Stop Routing and Non-stop Services

– Not everything will necessarily be dual homed

In-service software upgrade


Non-Stop Service Availability

Anycast RP

Active

Active

Standby

Primary

Backup 802.3ah

LACP

802.3ah

IGP: IS-IS

MPLS: RSVP-TE (FRR)

802.3ah

LACP

MCS

Standby

Backup

Resilient

VPLS

Active

Standby

Primary

Network

Resiliency

System

Resiliency

100007956 SR Overview Training for WCDMA v2

Documents

sr bts node b

sr mpls

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wcdma uiiv

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