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authorMatthew Smith <mgsmith@netgate.com>2023-09-26 13:08:26 +0000
committerNeale Ranns <neale@graphiant.com>2023-10-25 08:46:20 +0000
commit9e5694b405e0200725a993f0c17d452fab508435 (patch)
tree070a52d52ab653ccb3611bd232be89c1bd74f979 /extras/hs-test/suite_tap_test.go
parent52aaa9b0ac20d7dca1b342c1dec3a9726ff45f4c (diff)
fib: only update glean for interface if necessary
Type: improvement If an interface address is added, the glean adjacency for it's covering prefix is updated with that address. In the case of multiple addresses within the same prefix being added, the most recently added one will end up being used as the sender protocol address for ARP requests. Similar behavior occurs when an interface address is deleted. The glean adjacency is updated to some appropriate entry under it's covering prefix. If there were multiple interface addresses configured, we may update the address on the adjacency even though the address currently in use is not the one being deleted. Add a new value PROVIDES_GLEAN to fib_entry_src_flag_t. The flag identifies whether a source interface entry is being used as the address for the glean adjacency for the covering prefix. Update logic so that the glean is only updated on adding an interface address if there is not already a sibling entry in use which has the flag set. Also, only update the glean on deleting an interface address if the address being deleted has the flag set. Also update unit test which validates expected behavior in the case where multiple addresses within a prefix are configured on an interface. Signed-off-by: Matthew Smith <mgsmith@netgate.com> Change-Id: I7d918b8dd703735b20ec76e0a60af6d7e571b766
Diffstat (limited to 'extras/hs-test/suite_tap_test.go')
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