[intfmgrd] Flush IPv4 link local neighbors while removing router intf #3310
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When removing the router interface, ensure to also flush the IPv4 Link-Local neighbors. If there is no IP address on the router interface, the IPv4 Link-Local neighbors may not automatically disappear. This can prevent the failure removal of the router interface due to it being referenced by the neighbor entries. Signed-off-by: gord_chen <gord_chen@edge-core.com>
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What I did
[intfmgrd] Flush IPv4 link local neighbors while removing router intf
Why I did it
When removing the router interface, ensure to also flush the IPv4 Link-Local neighbors.
If there is no IP address on the router interface, the IPv4 Link-Local neighbors may
not automatically disappear. This can prevent the failure removal of the router interface
due to it being referenced by the neighbor entries.
How I verified it
Details if related