Failure protection for traffic-engineered bit indexed explicit replication
US10693765B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2018 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Aug 30, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/201
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and network devices are disclosed for failure protection in traffic-engineered bit indexed explicit replication networks. In one embodiment, a method includes determining a protected link or node in a network, where the protected link or node is included in a designated path to be taken by a message through the network to a destination node, the designated path is encoded in a message bit array carried by the message, and assigned bit positions in the message bit array represent respective network links along the designated path. The method further includes determining a backup path to the destination node from a feeder node adapted to forward a message carrying the message bit array into the protected link or node, and populating an entry in a path update table stored at the feeder node. In one embodiment a network device includes a network interface and a processor configured to carry out the methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.