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Cisco Bug: CSCun43331 - ASR9k LC bootup cause 19 sec mcast traffic drop

Last Modified

Jul 20, 2018

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

5.1.0.BASE

Description (partial)

Symptom:
Upon ASR9k LC bootup, PIM and MRIB are all updated with new RPF, but MFIB took 18-19 sec to get programmed.

The MFIB platform init call is taking a long time to complete and that intrudes into the control plane convergence time. We see the following in the traces:
 
Feb 27 18:33:02.813 mfwd/ipv4_mfwd_partner 0/0/CPU0 t1  MFWD started..
Feb 27 18:33:07.143 mfwd_ipv4_hw/init 0/0/CPU0 t1  Initialized EDM backend
Feb 27 18:33:26.273 mfwd_ipv4_hw/init 0/0/CPU0 t1  Initialized fabric and registered with MGID programmer
Feb 27 18:33:27.090 mfwd_ipv4_hw/init 0/0/CPU0 t1  Initialized uIDB manager
Feb 27 18:34:34.032 mfwd_ipv4_hw/init 0/0/CPU0 t1  Initialized connection to PRM
Feb 27 18:34:51.285 mfwd_ipv4_hw/event 0/0/CPU0 t1  PRM NP State change: Event: Running; New state: Running; Previous state: Unknown State

Conditions:
none
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