Fast flooding based fast convergence to recover from network failures
US9614721B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2014 |
| Grant date | Apr 4, 2017 |
| Priority date | — |
| Expiry date | Mar 5, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/66
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method in a router for initiating fast flooding based fast convergence to recover from a network failure is disclosed. The method also starts with detecting a network failure. Responsive to the detected network failure, the router floods a layer 2 fast failure notification message out a set of one or more interfaces of the router. The fast failure notification message includes information that identifies the network failure and indicates to a router that receives the fast failure notification message to flood the fast failure notification message out its interfaces that are not blocked by a spanning tree protocol (STP) independently of updating its routing table to reflect the network failure. The method continues with the router updating a routing table to reflect the network failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.