Multi-chassis PON Protection in MPLS draft-jiang-pwe 3 -mc-pon-03

Multi-chassis PON Protection in MPLS draft-jiang-pwe 3 -mc-pon-03 Yuanlong Jiang, Yong Luo, Huawei Edwin Mallette, Bright House Networks Chengbin Shen, China Telecom Juniper Yimin Shen, Weiqiang Cheng, China Mobile Guangtao Zhou, China Unicom 91 st IETF - Honolulu Copyright © 2004 Juniper Networks, Inc. Proprietary and Confidential 1 www. juniper. net 1

Overview § Basically, this document provides multi-chassis support for PON access § Unique characteristic of PON trunk protection • In trunk protection, downstream optical signal is not available on the protection link • End to end protection mechanisms such as ITU-T G. 8031 does not work as APS protocol runs on the protection path § Extend ICCP to support synchronization of PON state and use PW redundancy to synchronize PW switchover 91 st IETF - Honolulu Copyright © 2004 Juniper Networks, Inc. 2 Proprietary and Confidential www. juniper. net 2

Protection of a tree of ONUs • Trunk protection can protect a tree of ONUs with scalabi Tree of ONUs OLTA PON PON Splitter PON X Gb. E SW X Gb. E PE 1 ONU 2: N Protection OLT 2 ONU OLTB ONU 2: N PON ONU X Gb. E PON SW X Gb. E MPLS Network Small Cells Access Network 91 st IETF - Honolulu Copyright © 2004 Juniper Networks, Inc. 3 Proprietary and Confidential www. juniper. net 3

Protection of a tree of DSL • DSL tree builds on existing subscriber lines • PON further provides a section of aggregation • Trunk protection can protect a tree of DSLs with scalabil Tree of DSLs OLTA PON PON MODEM DSLAM MODEM X Gb. E PE 1 Protection OLT 2 DSLAM OLTB DSLAM MODEM PON SW 2: N MODEM Splitter X Gb. E 2: N DSLAM X Gb. E PON PON SW X Gb. E MODEM MPLS Network Access Network 91 st IETF - Honolulu Copyright © 2004 Juniper Networks, Inc. 4 Proprietary and Confidential www. juniper. net 4

Comments & questions on V. 02 § Any deployment of Type-B PON protection? • Yes, we see quite a few real deployments of type-B PON protection in carrier networks around the world, and many more SPs have shown their interests in its future deployment. § Like to see more access technologies are covered, such as DSL and Ethernet • For the moment, we focused on PON since it is the immediately needed, but contributions on other access technologies are greatly welcome. 91 st IETF - Honolulu Copyright © 2004 Juniper Networks, Inc. 5 Proprietary and Confidential www. juniper. net 5

Updates in V. 03 § New co-authors are added • Weiqiang Cheng from China Mobile, and • Guangtao Zhou from China Unicom § Added clarifications on the usage of PON Configuration TLV § Added clarifications on the usage of PON State TLV 91 st IETF - Honolulu Copyright © 2004 Juniper Networks, Inc. 6 Proprietary and Confidential www. juniper. net 6

Next Step § Can this be accepted as a WG item? 91 st IETF - Honolulu Copyright © 2004 Juniper Networks, Inc. 7 Proprietary and Confidential www. juniper. net 7

Thank You 91 st IETF - Honolulu Copyright © 2004 Juniper Networks, Inc. 8 Proprietary and Confidential www. juniper. net 8