[nbrmgr] Interface cache for Neighbor refresh #2453
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This seems to be overloading the nbrmgrd. Need to understand the motivation and limitations with existing arp_update mechanism before this can be merged |
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What I did
Added Interface cache in nbrmgrd to handle neighbor refresh
Nbrmgrd subscribes to Interface Table events and adss/deletes interface cache ==> Interface to IPAddr list info, whenever ip address is added or removed from an L3 physical interface.
Why I did it
Please refer sonic-net/SONiC#1043
How I verified it
There are no new processing in OA based on this change, hence no update to Syncd/SAI, only the cache information is updated in nbrmgrd.
Details if related
This is one part of the change to support neighbor refresh functionality. For the complete list of related Code PRs, please refer to sonic-net/SONiC#1043.