Cisco Bug: CSCun31771 - fib-suppress-pending command doesn't take effect on "no shutdown" of BGP

Last Modified

Feb 14, 2018

Products (1)

Cisco Nexus 9000 Series Switches

Known Affected Releases

6.1(2)I1(1.144)

Description (partial)

Symptom:
Long convergence times of around 5-10 seconds seen on BGP process no shutdown.  This is due to the BGP "supress-fib-pending" command not taking effect in this situation.  Due to this, the N9508 advertises BGP routes before programming in the hardware.  This results in traffic being dropped.

Conditions:
When executing the "no shutdown" command under the BGP config to restore the BGP process long convergence times are seen.

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