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Cisco Bug: CSCvv62416 - 7.3.1.21I - CFM HW Offload Down Mep Sessions not coming up for HW-Offload Timer-10ms and 3.3ms

Last Modified

Oct 23, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

7.2.1.CE 7.3.1.CE

Description (partial)

Symptom:
CFM Down Mep Sessions are not coming up with HW-Offload Timers - 10ms and 3.3ms

Conditions:
1. Configure cfm profile for Down Mep with intervals 10ms or 3.3 ms
2. Apply it on physical sub interfaces on DUT and peer.
Profile:-
RP/0/RSP1/CPU0:R1#sh run ethernet cfm       
Tue Aug 25 19:26:39.021 UTC
ethernet cfm
domain MD-down level 4 id null
  service down_meps_vpws down-meps id number 3
   continuity-check interval 10ms loss-threshold 3
   continuity-check archive hold-time 10
   mep crosscheck
    mep-id 3000
   !
  !
!
!
RP/0/RSP1/CPU0:R1#sh run int TenGigE0/1/0/6/1.10 
Tue Aug 25 19:27:01.012 UTC
interface TenGigE0/1/0/6/1.10 l2transport
encapsulation dot1q 10 second-dot1q 20
ethernet cfm
  mep domain MD-down service down_meps_vpws mep-id 4000
  !
!
!

3. Mep doesnt come up.
Domain MD-down (level 4), Service down_meps_vpws
Down MEP on TenGigE0/1/0/6/1.10 MEP-ID 4000
================================================================================
St    ID MAC Address    Port    Up/Downtime   CcmRcvd SeqErr   RDI Error
-- ----- -------------- ------- ----------- --------- ------ ----- -----
R>  3000 00a7.420f.41da Up      01:10:05       420568      0 417458     0
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