| 摘要 |
A redundancy method and apparatus for a default router of hosts in a local area network (LAN). The router redundancy system includes an active router and at least one standby router. The active router transmits a periodic advertisement message. The standby router determines whether a periodic advertisement message is received from the active router within a predetermined timeout period, and repeatedly transmits a heart beat message to the active router a predetermined number of times if the advertisement message is not received. After repeated transmission of the heart beat message, the standby router transitions to an active state if a response to the heart beat message is not received within a predetermined waiting time.
|
