pr and tss40 training_ed1

All rights reserved © 2005, Alcatel

Packet Ring Technologies and 1850 TSS40

OND Training, May, 2006


Packet Ring Technology Packet Ring solve RPR(IEEE 802.17) Problem 1850TSS40 Details


Packet Ring Introduction


What is Packet Ring

• With the same conception of Resilience Packet Ring (IEEE 802.17)

• Using two count rotating fiber rings

• Pure Packet-based transmission

• Enhanced with L2 MPLS technology

• Provide advanced Ethernet transmission functions:

• Connection-oriented connection

• Bandwidth Spatial Reuse (bidirectional transmission)

• 50ms protection

• Ring-wide fairness

• Solve the RPR problems:

• Broadcast issue with bridging traffic

• Connection-less services

• Node fairness, not the ring-wide fairness


Packet Ring Technology with MPLS

C-VLAN

RPR

PK

T

Ethernet

S-VLAN

C-VLAN

MPLS (PW)

GFP

SONETSDH

TDMVCG

Ethernet

TDM

Protocol Stack

Classification

Policing

Switching

Scheduling Shaping(traffic regulation, delay & jitter control)Packet ADM (PR)

Header Editing

Fra

me

Functional Flow

GCAC(Ensures network resources)

NMS

Ring-Wide Per-FlowFairness

Per-FlowFairness

RPR


STM-16STM-16

Benefit from Packet Ring – BW Improvement

2.5GThroughput

(High Priority)

2.5GThroughput(Low Priority)

5GThroughput

in total


Benefit from Packet Ring – Sub 50ms Protection

Sub 50ms protectionWithin Packet Ring

Dual-attach protectionAcross multiple rings


Benefit from Packet Ring – BW Fairness Control

Normal Congestion Management

A B C D

Packet Ring’s Dynamic Fairness Control

BW=B BW=C BW=D

A B C D

BW=B BW=C BW=D

A B C D

BW=b BW=c BW=d

Limit the input Throughput



Informs the congestion and credits

Traffic Drop w local Scheduling - WDRR


Benefit from Packet Ring – 3 Level QoS with CIR and EIR

BW Profile High Medium Low

CIR Voice BTV, VLL Games

CIR+EIR VOD, Interactive Client-Server FTP

EIR VPLS Internet, Email

High

Medium

Low

CIR

EIR


Packet Ring Solved RPR Problems


Broadcast Behavior of RPR for Bridging traffic

• Broadcast will happen for the traffic from a Remote station to whatever the Remote or Local destination.

• It impact the Spatial-reuse of ring bandwidth• Alcatel Packet Ring is using the MPLS plus MAC learning,

with broadcasting


Connection-less Forwarding of RPR

Packet Ring is MPLS EncapsulationConnection oriented (MPLS)Flow paths are engineered, controlled and optimizedDelay and jitter are lower with connection-oriented technology. Transit buffers are lower.

21

3

4

A B

RPR is connectionlessTraffic streams follow minimum hop countI need to engineer my network

•Better BW utilization•Involve other considerations like path cost

RPRRPR

RPR

RPRA

B C

D

E

RPR

User A

User B

DA: MAC BSA: MAC A

This is Mine

DA: MAC BSA: MAC A

DA: MAC BSA: MAC A

DA: MAC BSA: MAC A

DA: MAC BSA: MAC A

DA: MAC BSA: MAC A

DA: MAC BSA: MAC A

DA: MAC BSA: MAC A

DA: MAC BSA: MAC A


End-to-end Provisioning with MPLS

21

3

4

B

I need to provision services end-to-end across ringsRPR does not support it

MPLS EncapsulationPoint-and-click end-to-end services across rings

21

3

4


End-to-end Multi-rings Protection with MPLS

I need to protect connectivity between ringsRPR does not offer it

MPLS EncapsulationAllows for Dual Attach (DA) between rings

“DNI-Like” protection


Congested Egress Port

Fairness – Congestion in Egress Port

TSS/40

TSS/40

TSS/40

TSS/40

2.5GbpsRing

RPR discards randomlyRPR does not monitor egress portsBW is wasted through the ring, while packets are discarded at egress

1Gbps

1Gbps

0.5Gbps

0.5Gbps

Packet Ring ImprovementFlows are reduced relative to the SLA


Ring Congestion

Fairness – Congestion in the Ring

TSS/40

TSS/40

TSS/40

TSS/40

2.5GbpsRing 1.25G

1.25 G

1.25 G0.625G

0.625G

1.25G

RPR fairness is per nodeRPR will lower BW of all flows within the node

Packet Ring ImprovementIndividual feedback per flow reduces congesting flows onlyFlows are reduced relative to SLA

0.83 G

0.83G

0.83 GB

A

A


1850TSS40 Details


Service Management in 1850 TSS-40

2.5G Fibre

SDH Bandwidth Management (future)

Packet Bandwidth Management

E-Line & PWE3E-LAN & H-VPLSBroadband AggregationTriple Play

QinQ VLAN MAC Pseudo-wires

Packet Ring

VC-nv

VC-x

MPLS

MPLS

Committed Excessive

Delay Control

Guaranteed

Private LineTDM AggregationCarrier-to-Carrier

Service QoS

Services

10G (future

)

TDM (future

)

TDM/PacketBW Ratcheting


1850 TSS-40 Approaches

1850 TSS-40

MPLS-based Packet Ring Technology

2.5G Packet-based Add&Drop Multiplexing for GbE and FE traffic

2.5G/10G

2.5G/10G

Packet RingPacket Ring

Gb

EG

bE

FE

FE

TD

MTD

M

50ms Less Ring Protection for all Services

Enhanced Ethernet Aggregation Solution Ring Bandwidth Improvement (2 x BW) L3 Aware Traffic Classification (3play) 3 Priorities Combined with CIR and PIR Load-balancing (fairness)

Native TDM Supported for E1, E3/DS3 and STM-1 Lease-line


1850 TSS-40

19”

4RU

Common Slots Functional Slots

Trunks (Packet Ring)STM-16Upgradeable to STM64/10GE

Client InterfacesGE/FE or TDM

RedundantEC

ServiceCard

RedundantPS

RedundantFan

Customer Activities:FranceAustraliaItalyIrelandUAE


4U Box Management

Built-In Craft Terminal (for commissioning)

Management integrated in1354BM and 1353NM or standalone EMS/NMS (same as ISA-PR)

TSS-40 Building Blocks

ST3 Timing (for TDM) Redundant BITS Input/Output

Redundant PS 2+1 / 3+1

Trunk Cards STM16 Trunk STM64/10GE (future)

Redundant Controller (EC)

Up to 4 Trib Cards 4xGbE Trib 16xGbE per card (future)

16xFE/FX Trib TDM OC12/STM4/OC3/STM1/DS3/E3/DS1/E1 Trib (future)

SERVICE Card NMS, LEDs, Alarms

Redundant FAN


EC Functions

NE Control Protection switching Alarm LEDs/contactors S/W download …

NMS interface Craft PM IGMP snooping xSTP


SERVICE Functions

Connectivity to NMS Alarm LEDs and contacts


Tributary Functions

L2 functions Classification Header editing

TDM LO functionality TDM LO XC


Trunk Functions

Policing Scheduling Switching ADM Ring Protection

TDM HO functionality TDM HO XC


1850 TSS-40 MEF-9 Compliant

Passed extensive test in IOMETRIX 262 test cases

Solid foundation for Carrier Ethernet interoperability Ensures the customer of service variety and fulfillment Saves in-house testing

16 vendors announced in CEWF Berlin Alcatel and Cisco are the most significant vendors

Significant achievement Many test equipment vendors


Service Oriented NMS - Standalone or 1354 BM-PR Integrated

• System Configuration

• Powerful EMS/NMS

• Point and click service provisioning

• Autodiscovery

• Maintenance & FaultManagement

• And more…

• All OS Kernel benefits•Resiliency•Backup/restore etc.

Service Map

Service Provisioning

Customer Management

PMAlarms


Service Provisioning as Easy as 1-2-3

Equipment View

Service Provisioning

1

2

3


BTV Service Enablers

-Snooping on IGMP messages

HUB

Spoke

Spoke

Spoke

P2P

P2MP

-Block / Unblock channels downstream

QuerierSingle or Dual

•IGMP Snooping – Saves BW on DSLAM

•Frees BW for HSI

•H&S-BTV Service Model•BDCAST BW optimized (D&C)•No user-to-user•Simple DSLAM configuration – all DSLAMs are the same

-Limit number of concurrently viewed channels

•Full control over open BTV channels

-Channel statistics

All protection mechanisms available

(equipment, ring, xSTP, LAG…)

•Full view of current BTV channel status


HSI Service Enablers

-MAC Learning

HUB

Spoke

Spoke

Spoke

P2P

P2MP w/ MAC Learning (VPLS)Multicast optimized (D&C)

-Overbooking

BRASSingle or Dual

•MAC Learning – DSLAM BW optimization

•MAC Learning – smaller tables

•H&S-HSI Service Model•MCAST BW optimized (D&C)•No user-to-user•Simple DSLAM configuration – all DSLAMs can be the same

-Policing

•Policing. No one gets more than paid for


•Overbooking possible – more revenues

•Fairness per flow upon congestion•Minimum guaranteed ensures minimum service quality

•Low priority – latency is not important


VPN Service Enablers

P2P

RouterSingle or Dual

•E-LAN (VPLS) Service Model•Full mesh w/ MAC learning•E-LAN-Hub also possible•Guaranteed + overbooked BW•Medium/Low priority

•Policing. No one gets more than paid for


•Overbooking possible – more revenues

•Fairness per flow upon congestion


VoIP Service Enablers

P2P

ApplicationServer(s)

•Can be realized with E-LAN or p-t-p

•High priority for low latency•Guaranteed BW, no overbooking

•Policing, no one gets more than paid for



VOD Service Enablers

P2P

ApplicationServer(s)

•Simple p-t-p•Medium priority for medium latency

•Guaranteed BW, no overbooking

•Simple DSLAM configuration. Can reuse VLANs on DSLAMs


VLAN 100

VLAN 100

VLAN 100

VLAN 501, 502, 503


1850 TSS-40 R1.2 CSR – Available

H&S service with VLAN swapping IGMP Snooping

Activated on H&S-BTV services Fast leave Ability to limit # of simultaneous open

BTV channels (per port) BTV channel monitoring

Link Aggregation 3 ports – can be split between cards Service>1Gbps up to 2.5Gbps Any service Allows IGMP snooping on LAG ports

Ongoing tests in:- FT- Telstra- Etisalat (soon)

R1.2 DR4 = End Mar-06


R1.3 – July/06 – DR0+

High Availability & ProtectionEC RedundancyAuto upgrade after s/w downloadxSTPAlarms on Dual Feed PSSERVICE alarms & hot swapMCASTIGMP snooping on H&S-HSI

HSI w/ MAC learning & BTV on same service

IGMP Dual QuerierOther FunctionsUser control on MAC@ agingMAC@ table = 2x28k per GE cardSupport full VCAT – VC4-4v – VC416v & VC4-16c in new Trunk

card


R1.4 – Dec/06 – DR0+

16xGE card

Baby jumbo frames – 2k

Handling of variable BW BTV channels (improved IGMP CAC)

Maintenance

ALS on Ethernet and SDH i/f Useful for safety and unidirectional failures

Historical PM

PM counter reset

PM per service (already available on CLI)

FWD/BKWD LPBK on SDH & Ethernet i/f

Manual/Forced protection on SDH

BW utilization indication in RT

Ethernet link loss propagation Relevant for p-t-p services only


What Next…

Native TDM – 8xSTM1

1+1; 1+0 21xE1 + 3xE3

With optional EPS LO SNCP on TDM Ring Traffic ST3 Timing

STM64 TrunkUpgradeable from STM16 Supports all 4 slots for packet or TDM

16xGE Tributary cardUpgradeable from 4xGE card Allows up to 52xGE per box


Key Benefits

All L2. Let the IP/MPLS core handle the complex L3. Simple management. Just point & click. Saves OPEX

Optimized for BTV and 3-Play 100% Packet to 100% TDM in one box Premium QoS. Hard BW guaranties. Overbooking with fairness per flow

Carrier class High fanout – 52xGE. High capacity – STM64 Trunk. Small size – 4U Cost effective Saves CAPEX and OPEX

Simple but Intelligent


Q & A

pr and tss40 training_ed1

Documents