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Cisco Bug: CSCvu93465 - fib_mgr traceback and traffic constantly dropped as ENQ_DISCARDED_PACKET_COUNTER

Last Modified

Sep 25, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

7.1.2.BASE

Description (partial)

Release-note

Symptom:
Seeing Non-stop fib_mgr[FIB platform update failed and traffic constantly dropped as ENQ_DISCARDED_PACKET_COUNTER when 1000 GRE tunnels are flapped for 20+ of times.

Conditions:
approximately 1000 GRE tunnels are configured with custom TOS values going over a single link to its destination 

interface tunnel-ip <xyz>
 tunnel tos <Y>
!
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