feature is an IP routing method that forces OSPF to use MPLS TE tunnels to
build paths for IP traffic routes.
feature enables all routes to use TE Tunnels, even if there is an alternate
non-TE path available for that route.
Autoroute Exclude feature allows specific destinations or prefixes to avoid TE
tunnels, while other prefixes can still be configured to use TE tunnels.
Prefixes that are excluded do not use a TE tunnel path. Only native non-TE
paths are downloaded to RIB for such routes.
The auto route
exclude option is configured under the router OSPF configuration mode by using
a prefix list. IP addresses and prefixes that are members of this prefix list
are excluded from TE tunnels, even when the auto route is enabled on them. If
the IP addresses or prefixes are added to the prefix list, they are dynamically
routed without passing through the TE tunnel. If the IP addresses or prefixes
are removed from the prefix list, they are dynamically rerouted back on the TE