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Cherry-pick from master #1433

Merged
merged 2 commits into from
Feb 18, 2021
Merged

Cherry-pick from master #1433

merged 2 commits into from
Feb 18, 2021

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renukamanavalan
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PR #1337 & #1344

lguohan and others added 2 commits February 12, 2021 17:31
…t#1337)

orchagent ignore all routes pointing to Loopback interfaces.
add this skip logic in route check.

sonic-net/sonic-swss#1570

Signed-off-by: Guohan Lu <[email protected]>
…#1344)

Summary: Improve the tool to handle the possible latency between APPL-DB & ASIC-DB by looking at subscription messages.

- What I did
The routes flow from APPL-DB to ASIC-DB, via orchagent.
This tool's job is to verify that all routes added to APPL-DB do
get into ASIC-DB and all routes removed from APPL-DB are deleted from ASIC-DB.

- How I did it
NOTE: The flow from APPL-DB to ASIC-DB takes non zero milliseconds.
1) Initiate subscribe for ASIC-DB updates.
2) Read APPL-DB & ASIC-DB
3) Get the diff.
4) If any diff,
4.1) Collect subscribe messages for a second
4.2) check diff against the subscribe messages
5) Rule out local interfaces & default routes
6) If still outstanding diffs, report failure.

- How to verify it
Run this tool in SONiC switch and watch the result. In case of failure
checkout the result to validate the failure.
To simulate failure:
Stop Orchagent.
Run this tool, and likely you would see some failures.
You could potentially remove / add routes in APPL / ASIC DBs with orchagent
down to ensure failure.
Analyze the reported failures to match expected.
You may use the exit code to verify the result as success or not.
@abdosi abdosi merged commit 02438f9 into sonic-net:201911 Feb 18, 2021
@rlhui
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rlhui commented Feb 19, 2021

@renukamanavalan - the title should reflect the change description. And this is not a git cherry-pick, but a direct PR for 201911 branch.

stepanblyschak pushed a commit to stepanblyschak/sonic-utilities that referenced this pull request Apr 28, 2022
Avoid adding loopback interface (ip link add) when setting nat zone on
loopback interface (sonic-net#1434)
    [acl] Remove Ethertype from L3V6 qualifiers (sonic-net#1433)
    Sflow fixes during DEL processing (sonic-net#1427)
    Fix #3971 by skipping create-only SAI attributes when modifying
    buffer pools or profiles in orchagent (sonic-net#1430)
    Fix issue: bufferorch only pass the first attribute to sai when
    setting attribute (sonic-net#1442)

Signed-off-by: Abhishek Dosi <[email protected]>
stepanblyschak pushed a commit to stepanblyschak/sonic-utilities that referenced this pull request Apr 28, 2022
02438f9 (HEAD -> 201911, origin/201911) Cherry-pick Master PR for route-checker tool (sonic-net#1433)
e54fb69 [201911][vnet] Add "vnet_route_check" script (sonic-net#1443)

Signed-off-by: Abhishek Dosi <[email protected]>
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4 participants