Carrier Ethernet / Broadband Evolution

1
Carrier Ethernet / Broadband Evolution

• Dr.Ulrich Schoen
• Siemens ICN Carrier Products System Engineering
• ITU All Star Access Workshop, 2-4 June 2004

2
the Broadband Networking Trend
Almost all Carrier Services will be
IP-based! (www, VPN, VoIP, TV/Video ...)
3
Broadband DeploymentsBitrate Efficiency vs.
Revenue Profitability
Access Bitrate Mbit/s
100 Mbit/s
100 Mbit/s
40 Mbit/s
26 Mbit/s
3 Mbit/s
DTAG (Germany)
Chunghwa (Taiwan)
eAccess (Japan)
APAC Strategy
Source Broadband World Forum 05/2004 Dr.Semmoto
(eAccess) et.al.
APAC, especially (South)Korea, Japan, Taiwan,
China ...
4
ExampleKTs Next Services over Broadband
5
.... for this Broadband Services Trend to become
real, a very cost effective, performant and
dedicated Packet Network is key
6
Carrier EthernetAccess and Metro Network
Scenario
Customer Premises
Street cabinet
Metro Access
Metro/Regional Core
Inter-Metro Backbone
DSLAM
OEM
Ethernet OAM
PPE_SNT
Cu
EFM
fiber
Eth/GE
xDSL
IP/MPLS Core
PPE_SLE/SHE
PPE_M/L/XL
PPE_SHE
ISP
802.16d
Seabridge Products
WiMAX
PPE_SHE
GE
GE
fiber
Voice
GPON
optical splitter
Source ICN CP SE A
7
A combination of VLAN access andMPLS-based IP
Core is scalable and efficient
Metro Ethernet Network
Metro Ethernet Network
hiD
hiD
CE
VLAN
VLAN
hiD
hiD
CE
Site A
Site B
hiD
hiD
MPLS
MPLS
Site D
Site C
PE
PE
VLAN
VLAN
Network Architectures
CE
CE

• 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

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
9
Ethernet StandardizationMany 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

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.