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Cisco Bug: CSCul66327 - I.7 FEC Counters are broken in "show controler dwdm x"

Last Modified

Mar 05, 2018

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

4.3.2.BASE 4.3.2.LC

Description (partial)

Symptom:
The show controller dwdm x/x/x/x does not show the EC or the UC counter increasing even when the link is severely degraded. Also, the preFEC BER does not change from the value of 9.34E-11.

RP/0/RSP0/CPU0:ASR9001-E#show controllers dwdm  0/0/1/0
Controller State: Up
Transport Admin State: In Service
FEC Mode: Enhanced G975.1 I.7
         EC(current second) = 0           EC   = 0      UC   = 0
         pre-FEC BER < 9.34E-11           Q > 6.45           Q Margin > 7.25

Conditions:
User would have configured I.7 FEC mode for this to occur. Also, the EC and the UCs will not increase when the link is good.
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