Optimal bridging over MPLS/IP through alignment of multicast and unicast paths
US8169924B2 · kind B2 · utility
12Cited by
53References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2005 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Apr 7, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/26
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A provider edge (PE) node of a network operates to send a trace path message over the network to a receiver PE node, the trace path message recording a list of intermediate nodes of a unicast path from the PE node to the receiver PE node; and receive a join message initiated from the receiver PE node, the join message using the list to propagate to the source PE node through the intermediate nodes such that a branch of a multicast tree is aligned with the unicast path. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.