Add NEIGHBOR_MISS trap type and its own queue #3646
Closed
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
What I did
Add new trap type
SAI_HOSTIF_TRAP_TYPE_NEIGHBOR_MISS
and dedicated queueto better control those punt packets and not impact other critical punt traffic
Why I did it
As proposed in https://github.com/sonic-net/SONiC/blob/1fba16368a803bfeea57d93e8e39b3bcdcc3a67d/doc/copp/Copp_Neighbor_Miss_Trap_And_Enhancements.md we wanted to protect cpu from being hogged with neighbor miss packets
How I verified it
Details if related