[action] [PR:330] Fix SNMP output having fewer unicast queues than expected (#330) #334
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Outdated suggestions cannot be applied.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.
justin-wong-ce
First-time contributor
justin-wong-ce commented on Sep 6 •
SNMP assumes the first half of the queues to be unicast and the second half to be multicast. This assumption was fine for most hwSkus but not new ones being added to support, i.e. x86_64-arista_7060x6.
This change will allow configurations where there are more than half of maximum queues set as unicast. It however does not account for the case where there are more than half of the maximum queues set as multicast - that will cause problems for the sonic-mgmt snmp/test_snmp_queue.py test.
If the SNMP is expected to only return unicast queues, then I will make further changes to the unit test and source code to reflect this expectation in functionality.
If not, sonic-mgmt's snmp/test_snmp_queue.py should not expect only unicast queues to be returned, and SNMP should return all queues, not half (https://github.com/sonic-net/sonic-mgmt/blob/ac37f7f0fd7c7857559325a61d5ca6e6c4932194/tests/snmp/test_snmp_queue.py#L92) (grep UC)
Note:
Only tested on Arista hwSkus.
What I did
Accommodate for the case where the number of Unicast queues exceed the number of Multicast queues.
How I did it
Allow Unicast queues to be added to response when their queue number is greater than half of the total number of queues.
How to verify it
Passing unit tests and SNMP tests in sonic-mgmt. Note: Only ran on Arista hwSkus
Description for the changelog