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Cisco Bug: CSCsz06764 - XCVXC:with SF-V on work path IS-OOS-IS result stuck SF-V on protect path

Last Modified

Jul 02, 2013

Products (1)

  • Cisco ONS 15454 Series Multiservice Provisioning Platforms

Known Affected Releases

8.54 9.0(1)

Description (partial)

Symptom:
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With SF-V present on VT Upsr Destination working path, if we change the circuit state from IS->OOS,DSBLD->IS, SF-V is getting stuck on the Protect path

Conditions:
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Please follow the below steps for reproducing the Issue.
1)  Create 1-way/2-way VT1.5 Destination UPSR Ckt(UPSR on destination) with time slot as Example:  Source path slot4(OC3)/sts-1/vt-2 
Destination Working :slot12(oc48)/sts-1/vt-2 
Destination Protect:slot13(oc48)/sts-1/vt-2 

2)  Inject SF-V (CVV) on the working path. i.e on slot12(oc48)/sts-1/vt-2 
3)  SF-V is raised on the working path as Expected.
4)  The traffic swicthes to the Protect path. 
5)  Now Change Circuit state from IS--->OOS-DSBLD. TU-AIS is received on all the testsets as expected. 
6)  Now restore the circuit state from OOS-DSBLD-->IS. Stuck SF-V is reported on the protect path  No impact was observed on the traffic.

Note: This problem is seen only on XCVXC card. Reason for this Other XC Cards like XC10G,XCVT,.. don't had the hardware capability to detect CV-V Errors.
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