abcdef unified mpls · mpls-tp ip/mpls mpls-tp aggregation mpls-tp aggregation unified mpls mpls-tp...

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Unified MPLS

David Saccon

Ericsson, Product Area IP & Broadband


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Architecture Evolution

Internet

Mobile Network

Fixed Line Network

Converged Network

FIXED METRO (Fiber)

IP SERVICE EDGE IP & DWDM BACKBONE

MOBILE BACKHAUL (Microwave & Fiber)

MOBILE CORE

IP & DWDM BACKBONE

Internet

From multiple dedicated parallel networks to single network for multiple services (wholesale, fixed BB, mobile BB, multicast video, enterprise)

CONVERGED EDGE IP & DWDM

BACKBONE METRO &

BACKHAUL (Microwave and Fiber)

ACCESS


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›  The overall goal is simplification of the network (lower TCO)

›  Cost-effective transport of IP services

›  Optimal combination of IP/MPLS, MPLS-TP, OTN & WDM

›  Unified control plane and OSS / NMS

TDM

Ethernet, ATM, FR IP

MPLS MPLS

Now

Migration MPLS

Vision

Fiber/DWDM

TDM

Ethernet, ATM, FR IP

MPLS MPLS

Now

Migration MPLS IP

Fiber/DWDM

Vision

Microwave

Microwave SDH

Converged transport with common control

TECHNOLOGY AND

SYSTEM CONSOLIDATION


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Unified MPLS

Core Access Access

MPLS-TP MPLS-TP IP/MPLS

Aggregation

MPLS-TP

Aggregation

Unified MPLS

MPLS-TP

›  Scaling MPLS in access and aggregation ›  Carrier grade through enhanced OAM and traffic monitoring ›  Mix of transport grade and dynamic IP services

Leveraging MPLS to support end to end IP & Ethernet services across the network

Example Scenario


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UNIFIED MPLS ARCHITECTURE FOR CONVERGED NETWORKS

›  MPLS-TP at the access aggregation and metro domain

– Ethernet PW over bi-directional, co-routed, traffic engineered LSP

– OAM data plane driven protection switching

– Performance monitoring

›  IP/MPLS at the edge and core domain

– Ethernet PW terminated on IP VPN / VPLS / BRAS / S-GW service instances

– Multi-Segment PW –  LSP stitching –  LSP tunneling


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FIBER ACCESS

FIBER ACCESS

CORE METRO ACCESS

MSER APPS MEDIA GGSN PGW

EDGE 1st

aggr. 2nd

aggr. Internet

TERMINATION model

MPLS-TP

IP/MPLS SN

PE MPLS-TP

IP/MPLS SN

PE

PARTITIONING model IP/MPLS

AN

PE MPLS-TP IP/MPLS S-PE PE MPLS-TP IP/MPLS PE MPLS-TP IP/MPLS PE

LAYERING MODEL (1)

PE PE

AN

IP/MPLS IP/MPLS

MPLS-TP

PE

PE PE MPLS-TP PE PE

LAYERING MODEL (2)

PE PE

AN

MPLS-TP MPLS-TP

IP/MPLS

PE

PE PE IP/MPLS PE PE

PE -TP IP/MPLS PE PE PE -TP

PE MPLS-TP PE PE PE IP/MPLS IP/MPLS

Fixed BB, Mobile BB

Services Connectivity

AN-to-SN

Business VPN (L2, L3)

AN-to-AN


AN-to-AN


AN-to-AN

Various connection model options to be chosen based on type of service and network specific considerations

Different connection models

AN

PE


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U-PE

Ethernet

ACCESS AGGREGATION PACKET CORE

›  Bi-directional Co-Routed Traffic Engineered primary MPLS LSP and backup stand-by LSP provisioned via NMS (1:1)

›  Protection events handled autonomously by the data plane ›  S1/X2 Ethernet PWs (E-Line) terminated at U-PE

MOBILE PACKET CORE

IP/MPLS based

10,000s 1000s 100s

MME SAE-GW

PE1

PE2

PE3

PE4

PE5

PE6 PE8

PE9

PE7

eNB

eNB

PWE Eth

PWE Eth

S1 & X2 VPN

MoI & SoIP VPN

S1, X2

MoI, SoIP

Bi-Directional, Co-Routed, Traffic Engineered Stand-By LSP provisioned by NMS. Activation triggered by OAM

in the dataplane

Bi-Directional, Co-Routed, Traffic Engineered Primary LSP provisioned by NMS

LTE Backhaul


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ACCESS AGGREGATION EDGE CORE

Unified MPLS INTEGRATION mode Converged services

ENTERPRISE

MTU

RESIDENTIAL

METRO

›  Service processing ›  Mobile (LTE backhaul): L2 VPN (p2p) ›  Fixed: IPoE/PPPoE, IP VPN, VPLS, VPWS

AN Agg Agg PE SN

PW

LSP

Eth

LSP

Eth

PW

LSP

Eth

PW

LSP

Eth

PW

Eth

LSP

Eth

LSP

Eth

Service processing

Eth Eth Eth

IP IP

Eth

IP

eNodeB

CSG PE


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›  Termination of IP and packet transport are integrated at the node level

– Remove the need for external Ethernet/VLAN NNI handoff

–  In an end-to-end MPLS network, the MPLS PW becomes the NNI handoff

– Network simplication –  Reduced technology

layers –  Node consolidation

UNIFIED PE ARCHITECTURE

IP

MPLS

MPLS-TP

Unified PE

›  Unified PE could be located at the edge or metro core layer ›  Integration point for MPLS-TP and IP/MPLS networks

›  MS-PW, SS-PW (LSP stitching, LSP tunneling)

›  Multi-service Edge platform for delivery of converged services

– Mobile: LTE backhaul, WLAN integration

– Fixed: BRAS, CDN, WLAN integration

– Business: IP VPN, L2 VPN (p2p, multipoint services)

Unified PE is a convergence point for Mobile and Fixed


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control

FOR

WA

RD

ING

MPLS-TP e-lan

VPLS

e-line

VPWS

L2VPN

IP/VPN

L3VPN

IP routed over

MPLS

IP/MPLS

rout

ing

L3

IP-e

nabl

ed

static dynamic

switc

hing

L2

no

n-IP

Service mappings


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Summary

Convergence is driving the need for new end-to-end packet transport network

MPLS-TP allows us to extend MPLS from the Metro and Core to the Access in a scalable way

By bringing Transport and IP closer together, Unified MPLS is an architecture to allow network simplification and more efficient service delivery

A common end-to-end architecture allows us to more closely integrate packet transport with IP service delivery


(32 pt makes 2 rows








abcdef unified mpls · mpls-tp ip/mpls mpls-tp aggregation mpls-tp aggregation unified mpls mpls-tp...

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