Dynamically adjusting liveliness detection intervals for periodic network communications
US9258234B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2012 |
| Grant date | Feb 9, 2016 |
| Priority date | — |
| Expiry date | Mar 20, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/0864
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In general, techniques are described to dynamically adjust a session detection time defined by a timer in accordance with a bidirectional forwarding detection (BFD) protocol. The techniques utilize existing hardware and BFD software infrastructure. An example network device includes a memory, programmable processor(s), and a control unit configured to execute a timer, receive one or more packets provided by the BFD protocol, detect, based on the received one or more packets, a congestion condition associated with a link via which the network device is coupled to a network, adjust, based on the detected congestion condition, a session detection time defined by the timer, and in response to a failure to receive a packet provided by the BFD protocol within the session detection time defined by the timer, detect a failure associated with the link.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.