Information and Communication Networks Carrier Ethernet / Broadband Evolution Dr. Ulrich Schoen Siemens ICN Carrier Products – System Engineering ITU All Star Access Workshop, 2 -4 June 2004
… the Broadband Networking Trend: . . . but, Ethernet must become Carrier. Grade! (VMAN, MPLS, OA&M. . . ) Ethernet is the „natural Language“ of IP. . . (cheap, packetizing, statistical gain. . . ) Almost all Carrier Services will be IP-based! (www, VPN, Vo. IP, TV/Video. . . ) ICN CP SE Page 2
Broadband Deployments: Bitrate Efficiency vs. Revenue Profitability 100 Mbit/s Access Bitrate Mbit/s $ Monthly Rate 100$ 100 Mbit/s 60 $ 40 Mbit/s 28 $ 26 Mbit/s 21 $ 10 $ APAC Strategy 3 Mbit/s e. Access (Japan) Chunghwa (Taiwan) Source: Broadband World Forum 05/2004 Dr. Semmoto (e. Access) et. al. APAC, especially: (South)Korea, Japan, Taiwan, China. . . ICN CP SE DTAG (Germany) Page 3
Example: KT’s Next Services over Broadband ICN CP SE Page 4
. . for this Broadband Services Trend to become real, a very cost effective, performant and dedicated Packet Network is key: ICN CP SE Page 5
Carrier Ethernet: Access and Metro Network Scenario Customer Street Premises cabinet Metro Access DSLAM OEM Inter-Metro Backbone Ethernet OAM PPE_SNT EFM fiber x. DSL Metro/Regional Core Cu Eth/GE Ressource Management PPE_SLE IP/MPLS IP Router Core PPE_SLE/SHE PPE_M/L/ XL ISP IP Router 802. 16 d Wi. MAX PPE_SHE GE fiber optical splitter Seabridge Products GE Voice GPON ICN CP SE Source: ICN CP SE A Page 6
A combination of VLAN access and MPLS-based IP Core is scalable and efficient Metro Ethernet Network IP/MPLS Core Network hi. D VLAN CE Network Architectures Site A Site D CE n n hi. D MPLS PE Provider VLAN hi. D VLAN CE MPLS VLAN MPLS Metro Ethernet Network MPLS VC-LSP MPLS Tunnel-LSP hi. D Site B PE VLAN Site C Provider VLAN 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 n full mesh of tunnel LSPs between PE nodes is still required, but the number of PE nodes is dramatically decreased n Services can still be carried over an IP/MPLS core network ICN CP SE Page 7
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 possible, alternative ESN Qo. S, CIR yes Customer Separation yes Service Separation yes Network OAM yes ICN CP SE Page 8
Ethernet Standardization: Many Standardization bodies involved n IEEE 802 n n DSL Forum n n Ethernet based Access Networks, Qo. S MEF n n Provider bridge, Fault management, Link Security, Qo. S Services, OAM, UNI/NNI, Traffic Management, Protection, Circuit Emulation ITU n n n Services, Equipment, UNI/NNI, Circuit Emulation (SG 15) OAM, Qo. S, Traffic Management, Protection, VPNs (SG 13) CCSA n n China specific Ethernet definitions IETF n Ethernet over IP/MPLS, L 2 VPN ICN CP SE Page 9
Summary n NG Broadband networks will be based on Ethernet/VLAN and MPLS n A carrier grade NG Broadband network needs n n Reliable and scalable nodes and network architectures n n An efficient end-to-end management solution Leading edge access technologies Carrier Ethernet relies on standards that secure investment policy. ICN CP SE Page 10
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