Session 7 : Data over Transport Networks Session 7 : Data over - PowerPoint PPT Presentation

I nternational Telecom m unication Union ITU-T Session 7 : Data over Transport Networks Session 7 : Data over Transport Networks Highlights & Conclusions Highlights & Conclusions Ethernet Services over Transport MPLS Ethernet Services over Transport MPLS Italo BUSI, Alcatel BUSI, Alcatel Italo Highly Scalable Ethernets Highly Scalable Ethernets Paul BOTTORFF, Nortel Networks Paul BOTTORFF, Nortel Networks Ethernet OAM and Protection Switching Ethernet OAM and Protection Switching Hiroshi OHTA, NTT Hiroshi OHTA, NTT Next Generation Ethernet Next Generation Ethernet Alan McGUIRE McGUIRE, BT , BT Alan Malcolm BETTS Nortel Networks I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6

Highlights from Presentation 1 “Ethernet Services over Transport MPLS” ITU-T o T-MPLS can be used as a carrier grade infrastructure to support Ethernet services • Multi service capability • Ethernet service segregation and multiplexing • Infrastructure OAM and protection switching • S upports p2p, mp2mp Ethernet services I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 2

Highlights from Presentation 2 “Highly Scalable Ethernets” ITU-T o Global Virtual Private Network that supports multiple service instances • S upports multiple (client) services • Offers p2p, LAN and tree topology o Ethernet - continuing evolution • 802.1ah adds full encapsulation/ hierarchy for scalability and security • Carrier grade OAM with Y.1731/ 802.1ag • Protection switching G.8031/ 802.1aq I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 3

Highlights from Presentation 3 “Ethernet OAM and Protection Sw itching” ITU-T o OAM defined in Y.1731 and 802.1ag for fault and performance management • S upports fault isolation in multi carrier networks o Protection switching • Uses OAM frames • Rapid recovery for p2p services o S DH/ OTN style OAM for Ethernet I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 4

Highlights from Presentation 4 “Next Generation Ethernet” ITU-T o Ethernet • Ubiquity in Enterprise & the home • Interface of choice for many applications o Requirements: • Multi service capability – one interface • S eparation network/ customers and customer/ customer • S DH operational features and costs • Ethernet/ packet flexibility and price point o PBT is a potential solution I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 5

CONCLUSI ONS - Observation ITU-T o The Transport infrastructure has evolved from offering simple point to point private line services over S DH/ OTN/ WDM o Ethernet is the transport service interface of the future • Rapidly expanding “ infrastructure” service • S upports multiple clients o Packet transport network is evolving to meet the scalability and operational challenges I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 6

CONCLUSI ONS - Action ITU-T o Gap between the IP centric “ top end” of the transport stratum and the evolving packet based “ infrastructure” services o Transport network economies of scale rely on the aggregation of a large number of services o Carrier Ethernet offers flexible connectivity and QoS capabilities: How do we map from the individual dynamic service demands to the (more stable) aggregated trunks I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 7