Continuity check management in a link state controlled Ethernet network
US8264970B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2008 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Mar 27, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An OAM link trace message is sent from a source node to a target node in a link state protocol controlled Ethernet network. The link trace message using an 802.1ag format except, as a destination address, it uses either the unicast Ethernet MAC node ID of the target node, or the multicast destination address of the service instance. A method of network topology verification in a link state protocol controlled Ethernet network checks the link state protocol database at a node to ascertain the control plane topology view of at least part of the network. It then executes one or more Ethernet OAM commands from the node to ascertain the data plane topology view of the same part of the network. The control plane topology view of the network is compared to the data plane topology view of the network to see if they match. An error is flagged if they do not match.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.