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e33b95b4bb
Once the remote end of a connected link is shut down (or lose its address), isisd will remove the corresponding route from its RIB after SPF runs. A new route for the same destination should be computed based on the local LSP, and that route by definition doesn't have any nexthop. The problem is that, when isisd tries to replace the old route by the new one, it fails because routes without nexthops can't be installed. That causes the old invalid route to remain in the RIB when it shouldn't. To fix this problem, change the zebra interface code to uninstall a route whenever it can't be installed (because it lacks nexthops) instead of doing nothing in that case. This change should fix occasional failures of the test_isis_sr_topo1 topotest. Signed-off-by: Renato Westphal <renato@opensourcerouting.org> |
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