[Bug]: Intermittent Failure test_route_consistency test_route_withdraw_advertise due to mismatch in number of routes withdrawn

[vikshaw-Nokia]

Issue Description

The number of unique routes withdrawn from line cards and the number of routes withdrawn from the ASICS for an MAX chassis are not the same.
As the initial number of routes is different. Use "show ip route sum" before withdrawing.
After withdrawing all the routes, the number is not the same for the duts
and the number of unique routes withdrawn from the ASICS for an MAX chassis

Results you see

A different number of initial routes before withdraw.
Use "show IP route sum" to check the number of unique routes

Results you expected to see

"show IP route sum" should show an equal number of routes for both asics on all duts

Is it platform specific

generic

Relevant log output

No response

Output of show version

No response

Attach files (if any)

No response

[vikshaw-Nokia]

@deepak-singhal0408
As asked in the meeting to be tagged

[deepak-singhal0408]

The issue is seen in 202405 due to partial Commits of AZNG optimizations changes..
in 202405 branch, The iBGP route syncing b/w Asics is stopped on Uplink linecard, but the Swss changes to stop installing them in Asic is not yet available.

Due to this, number of routes withdrawn are not matching b/w different asics of upstream linecard.

Depends on sonic-net/sonic-swss#3353