RuggedCom RuggedRouter RX1100 - Manual (Page 183)

18. Link Backup
Revision 1.14.3 183 RX1000/RX1100™
Figure 18.1. Link Backup Example
The daemon will construe the main link as having failed (even if its link status is "up") if the remote host
fails to respond to configurable number of pings after waiting a configurable timeout for each ping.
18.1.1.2. Use Of Routing Protocols And The Default Route
If the main trunk is on a private network, employ a routing protocol to ensure that an alternate route
to end network is learned after the backup trunk is raised. Ensure that OSPF/RIP are configured to
operate on the secondary trunk, assigning it a higher metric cost than that of the main trunk.
If the main trunk is on a public network, employ the "transfer default route" feature.
18.2. Link Backup Configuration
18.2.1. Link Backup Main Menu
Figure 18.2. Link Backup Main Menu
Note that Link backup is disabled by default and may be enabled via the System folder, Bootup And
Shutdown menu.
Link backup can be configured through the Link Backup Configuration link.
Link backup status and logs can be viewed through the Link Backup Status and the Link Backup
Log link after the daemon has been started. A link backup configuration can be tested through the
Link Backup Test link.