Method and apparatus for exchanging routing information
US9210067B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 2008 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Oct 29, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/03
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
During operation, a client node can receive a network's topology. Next, the client node can detect a change in an interface's state. The client node can then create an interface state change message which indicates the change in the interface's state. Next, the client node can send the interface state change message to the master node, which can cause the master node to notify other client nodes about the change in the interface's state. If a client node's copy of the link state database (LSD) is out of sync with the master node's LSD, the client node can request the master node to send a full LSD update message to the client node. The master node can multicast messages to the client nodes, and each node in the network can include one or more interfaces that are dedicated for sending and receiving control messages, thereby creating a separate control network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.