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authorAyan Banerjee <ayan@cumulusnetworks.com>2012-12-03 10:48:46 -0800
committerScott Feldman <sfeldma@cumulusnetworks.com>2013-01-07 09:59:40 -0800
commit16a86b3e2f82d3e19a722e2ab34c2c77f62ed926 (patch)
tree7c0826c1f684292ec80f8b7898e07f9c8e56b3f1 /ripd/.gitignore
parente1a555b67cc868f95ea2b53c278bd8d091333e5f (diff)
ospf: suppress delete using replacement
After a SPF run, OSPF deletes routes that have changed in terms of any metric, type, and/or next-hops and re-adds them. Given that the Zebra-RIB already support replacement semantics, we suppress deletes for routes that will be added back again. This has the following advantages. It reduces the number of IPC messages between OSPF/Zebra. Also, in the current flow, a batch of route deletes were followed by a batch of adds even for say a metric change. With the change, routes are sent as "add" when they are modified. Zebra already implicitly deletes older routes. Signed-off-by: Ayan Banerjee <ayan@cumulusnetworks.com> Reviewed-by: Scott Feldman <sfeldma@cumulusnetworks.com> Reviewed-by: Dinesh Dutt <ddutt@cumulusnetworks.com> Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
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