发明名称 |
RESILIENT ATTACHMENT TO PROVIDER LINK STATE BRIDGING (PLSB) NETWORKS |
摘要 |
A method system for interfacing a client system in a first network domain with a Provider Link State Bridging (PLSB) network domain. At least two Backbone Edge Bridges (BEBs) of the PLSB domain 20 are provided. Each BEB is an end-point of a connection in the first network domain to the client system and an end-point of at least a unicast path defined within the PLSB domain 20. An inter-node trunk is provided in the PLSB domain 20 for interconnecting the at least two BEBs. A phantom node is defined in the PLSB domain 20. The phantom node has a unique address in the PLSB domain 20 and is notionally located on the inter-node trunk one hop from each of the BEBs. Each of the BEBs is configured such that: an ingress packet received from the client system via the connection in the first network domain is forwarded through a path notionally rooted at the phantom node; and an egress subscriber packet destined for the client system is forwarded to the client system through the connection in the first network domain.
|
申请公布号 |
US2010157844(A1) |
申请公布日期 |
2010.06.24 |
申请号 |
US20080340174 |
申请日期 |
2008.12.19 |
申请人 |
NORTEL NETWORKS LIMITED |
发明人 |
CASEY LIAM;ALLAN DAVID;BRAGG NIGEL L.;CHIABAUT JEROME;ASHWOOD SMITH PETER |
分类号 |
H04L12/28 |
主分类号 |
H04L12/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|