patch fix to ignore dup nh in netlink msg #16385
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Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <[email protected]>
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@mlok-nokia @saksarav-nokia for viz.. |
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It looks good to me. |
rlhui
approved these changes
Sep 2, 2023
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Why I did it
Fixes #15803
In SONiC chassis, routes have recursive nexthop resolution when the routes are learnt from remote linecard.
In some cases after recursive nexthop resolution the number of nexthop for a route could reach
256.Zebra ran out of space when filling up 256 nexthops which causes zebra crash.
Work item tracking
How I did it
Create a patch to port FRRouting/frr#14096 which has change to ignore duplicate nexthop when filling up fpm message
The Fix was commit in this PR in master #16275. This PR is port of the fix to 202205
How to verify it
Testing on voq chassis
Which release branch to backport (provide reason below if selected)
Tested branch (Please provide the tested image version)
Description for the changelog
Link to config_db schema for YANG module changes
A picture of a cute animal (not mandatory but encouraged)