PRIMECLUSTER Global Link Services Configuration and Administration Guide: Redundant Line Control Function 4.1 (for Solaris(TM) Operating System)

2.2.7.1 Router monitoring function

The router monitoring function switches transfer path by running the ping command to adjacent routers (up to two routers can be registered per virtual interface) at regular intervals and restarts in.routed if a line failure is detected. This function is available exclusively for RIP mode.

Without router monitoring function, when a failure occurs, switching transfer path takes approximately 5 minutes. However, using monitoring function switching transfer path only takes approximately 1 minute.

• If there is a different node running a routing daemon in the same network, the time taken to switch the transfer path may not be shortened.
• Depending on where the failure occurred, the time takes to switch the transfer path may not be shortened.
• With the Router monitoring function for RIP mode, both configuration of the monitoring target for each virtual interface and start/stop of the router monitoring are not supported.

Figure 2.30 shows a summary of router monitoring function

Begin operation with ping monitoring against the primary monitoring router (router A in the figure below). If a failure is detected against the primary monitoring router, it restarts the routing daemon, stop the monitoring process to the primary monitoring router, and start monitoring the secondary monitored router. For connection type, connection between other networks is possible.

To control the traffic, refer to the RIP information and use a single transfer path.

[Figure 2.30 Router monitoring function]