3Com Switch 7750 Configuration Guide Guide

Routing Management Policy 265
switchover from the main route to a backup route is implemented. When the main
route recovers, the router will restore it and re-select a route. And, as the main
route has the highest preference, the router will choose the main route to send
data. This process is the automatic switchover from the backup route to the main
route.
Routes Shared Between
Routing Protocols
As the algorithms of various routing protocols are different, different routing
protocols may discover different routes. This brings about the problem of how to
share the discovered routes between routing protocols. The Switch 7750 Family
can import (with the import-route command) the routes discovered by one
routing protocol to another routing protocol. Each protocol has its own route
redistribution mechanism. For detailed information, refer to the description of
importing external route in routing protocol configuration of the following
chapters.