Failure protection for traffic-engineered bit indexed explicit replication
US10122614B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2016 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Apr 8, 2036 |
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 receiving at a node in a network a message comprising a message bit array, where bit positions in the message bit array correspond to respective links in the network. The method further includes evaluating a bit value at a bit position in the message bit array, where the bit position corresponds to a network link represented in a forwarding table for the node, checking for a failure state of the link represented in the forwarding table, and, responsive to a determination of a failure state of the link, modifying one or more bit values in the message bit array. In one embodiment a network device includes a network interface, a memory configured to store a forwarding table, and a processor configured to carry out the methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.