Informationand Communication Networks

Carrier Ethernet / Broadband Evolution

Dr.Ulrich SchoenSiemens ICN Carrier Products – System EngineeringITU All Star Access Workshop, 2-4 June 2004

ICN CP SE Page 2

… the Broadband Networking Trend:

Almost all Carrier Services will be IP-based!(www, VPN, VoIP, TV/Video ...)

Ethernet is the „natural Language“ of IP ...(cheap, packetizing, statistical gain ...)

... but, Ethernet must become CarrierGrade!(VMAN, MPLS, OA&M ...)

ICN CP SE Page 3

Broadband Deployments:Bitrate Efficiency vs. Revenue Profitability

100Mbit/s

100Mbit/s

Chunghwa(Taiwan)

DTAG(Germany)

40Mbit/s

eAccess(Japan)

APACStrategy

Source: Broadband World Forum 05/2004Dr.Semmoto (eAccess) et.al.APAC, especially: (South)Korea, Japan, Taiwan, China ...

Access Bitrate Mbit/s

28 $21 $

$ Monthly Rate

10 $

100$

60 $

26Mbit/s

3Mbit/s

ICN CP SE Page 4

Example:KT’s Next Services over Broadband

ICN CP SE Page 5

.... for this Broadband Services Trend to become real, a very cost effective, performant

and dedicated Packet Network is key:

ICN CP SE Page 6

Carrier Ethernet:Access and Metro Network Scenario

Metro/RegionalCore

CustomerPremises

Streetcabinet

Metro Access

IP/MPLSCore

Voice

Inter-Metro Backbone

PPE_SNT

PPE_M/L/XLPPE_SHE

IP Router

DSLAM

opticalsplitter

Cu

IP Router

ISP

GE

Eth/GE

PPE_SLE

PPE_SLE

Ethernet OAM

RessourceManagement

PPE_SLE/SHE

Seabridge Products

OEM

GE

802.16d

GPONGPON

WiMAXWiMAX

xDSLxDSL

fiberEFMEFM

PPE_SHE

fiber

Source: ICN CP SE A

ICN CP SE Page 7

IP/MPLS Core Network

MPLS MPLS

MPLS MPLSPE

hiD

MPLS

A combination of VLAN access andMPLS-based IP Core is scalable and efficient

Site ACE

Site B

CE

Site C

CE

VLAN

hiD

VLAN

hiD

Metro Ethernet Network

Metro Ethernet Network

VLAN

hiD

VLAN

hiDSite D

CE

PE

hiD

MPLS

Does not require MPLS-aware nodes near to the customer location PE nodes still need to implement one virtual bridge per VPLS instance Additional protection via MPLS Fast Reroute only between PE nodes – additional

Ethernet protection mechanisms are necessary between PEs and CEs Good scalability

full mesh of tunnel LSPs between PE nodes is still required, but the number of PE nodes is dramatically decreased

Services can still be carried over an IP/MPLS core network

Tunnel-LSPVC-LSPProvider VLAN Provider VLAN

Net

wor

k A

rchi

tect

ures

ICN CP SE Page 8

Carrier Ethernet: Characteristics and Objectives

Provider Multiple SPs (Service Provider)

Services Multi-Services: www, Voice, Video ...

Charging Flat rate or call by call (PPP)

BRAS BRAS possible, alternative ESN

QoS, CIR yes

Customer Separation yes

Service Separation yes

Network OAM yes

ICN CP SE Page 9

Ethernet Standardization:Many Standardization bodies involved

IEEE 802 Provider bridge, Fault management, Link Security, QoS

DSL Forum Ethernet based Access Networks, QoS

MEF Services, OAM, UNI/NNI, Traffic Management, Protection, Circuit

Emulation ITU

Services, Equipment, UNI/NNI, Circuit Emulation (SG15) OAM, QoS, Traffic Management, Protection, VPNs (SG13)

CCSA China specific Ethernet definitions

IETF Ethernet over IP/MPLS, L2VPN

ICN CP SE Page 10

Summary

NG Broadband networks will be based on Ethernet/VLAN and MPLS A carrier grade NG Broadband network needs

An efficient end-to-end management solution Reliable and scalable nodes and network architectures Leading edge access technologies

Carrier Ethernet relies on standards that secure investment policy.