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

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 100 Mbit/s 100 Mbit/s Chunghwa (Taiwan) DTAG (Germany) 40 Mbit/s eAccess (Japan) APAC Strategy Source: Broadband World Forum 05/2004 Dr.Semmoto (eAccess) et.al. APAC, especially: (South)Korea, Japan, Taiwan, China... Access Bitrate Mbit/s 28 $ 21 $ $ Monthly Rate 10 $ 100$ 60 $ 26 Mbit/s 3 Mbit/s

ICN CP SE Page 4 Example: KTs Next Services over Broadband

ICN CP SE Page 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/Regional Core Customer Premises Street cabinet Metro Access IP/MPLS Core Voice Inter-Metro Backbone PPE_SNT PPE_M/L/ XL PPE_SHE IP Router DSLAM optical splitter Cu IP Router ISP GE Eth/GE PPE_SLE Ethernet OAM Ressource Management PPE_SLE/SHE Seabridge Products OEM GE d GPON WiMAX xDSL fiber EFM PPE_SHE fiber Source: ICN CP SE A

ICN CP SE Page 7 IP/MPLS Core Network MPLS PE hiD MPLS A combination of VLAN access and MPLS-based IP Core is scalable and efficient Site A CE Site B CE Site C CE VLAN hiD VLAN hiD Metro Ethernet Network VLAN hiD VLAN hiD Site 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-LSP VC-LSP Provider VLAN Network Architectures

ICN CP SE Page 8 Carrier Ethernet: Characteristics and Objectives ProviderMultiple SPs (Service Provider) ServicesMulti-Services: www, Voice, Video... ChargingFlat rate or call by call (PPP) BRASBRAS possible, alternative ESN QoS, CIRyes Customer Separationyes Service Separationyes Network OAMyes

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.