zebra: Fix resetting valid flags for NHG dependents (backport #17731) #17741
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Upon if_down, we don't reset the valid flag for dependents and unset the INSTALLED flag. So when its time for the NHG to be deleted (routes dereferenced), zebra deletes it since refcnt goes to 0, but stale NHG remains in kernel. Ticket :#4200788 Signed-off-by: Donald Sharp <sharpd@nvidia.com> Signed-off-by: Rajasekar Raja <rajasekarr@nvidia.com> (cherry picked from commit 54ec9f3)
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Upon if_down, we don't reset the valid flag for dependents and unset the INSTALLED flag.
So when its time for the NHG to be deleted (routes dereferenced), zebra deletes it since refcnt goes to 0, but stale NHG remains in kernel.
Ticket :#4200788
This is an automatic backport of pull request #17731 done by Mergify.