Method, system, and apparatus for network device to access packet switched network
US8000231B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2010 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Jul 9, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/103
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for a network device to access a packet switched network is applied to a system in which the network device accesses the packet switched network by connecting to PEs in an active-standby mode. The method includes: an active PE and a standby PE each sends a fault detection message to the network device through an interface connected to the network device; the active PE sets the state of the interface to “up” and advertises a route to a remote PE if a fault detection response returned by the network device is received through the interface within a preset period; otherwise, the active PE sets the state of the interface to “down”, and withdraws the advertised route; and the standby PE sets the state of the interface to “up” and advertises another route to the remote PE after receiving a fault detection response through the interface connected to the network device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.