Distributed bidirectional forwarding detection protocol (D-BFD) for cluster of interconnected switches
US10003552B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2015 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Jun 20, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One embodiment of the present invention provides a switch which comprises one or more ports adapted to receive packets. The switch is a member of a network of interconnected switches, and also comprises a path monitoring apparatus adapted to: in response to a control packet associated with a session within a predetermined time interval, set a receive indicator for the switch to an active state; and in response to absence of the control packet associated with the session within the predetermined time interval, set the receive indicator for the switch to an inactive state. The path monitoring apparatus is also adapted to set a path state associated with the session based on the receive indicators for the switch and other member switches. The switch also comprises a broadcast apparatus adapted to broadcast at least the receive indicator for the switch to the other member switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.