Create a black hole static route to the destination that a router advertises to avoid routing loops when aggregating or injecting routes to other routers.
To perform this procedure on a non-default VRF, you must first change the VRF instance. For information about how to use EDM for a non-default VRF, see Select and Launch a VRF Context View. All parameters might not be available in non-default VRFs.
If an existing black hole route is enabled, you must first delete or disable it before you can add a regular static route to that destination.
Note
Only black hole routes that belong to the static type protocol are supported. An inter-VRF black hole route is not installed in the routing table of the destination VRF on the same switch.
To create a black hole static route, you must configure the NextHop address to 255.255.255.255.
When you specify a route preference, be sure to appropriately configure the preference so that when the black hole route is used, it is elected as the best route.