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Cisco Bug: CSCuo92912 - SLM counters do not increment after LACP switchover on remote PE

Last Modified

Jan 31, 2017

Products (1)

  • Cisco 7600 Series Routers

Known Affected Releases


Description (partial)

Ethernet synthetic loss measurement on distributed IOS platforms stops working following an LACP switchover.

The service level agreement (SLA) show commands will report 0 packets sent and received and 0 observations made, despite the flag of OK.


 - 7600 running IOS release 15.4(02)S and later. 
 - Running a SLA session using Ethernet synthetic loss measurement.
 - The responder maintenance point is configured on a port channel which has member links on different line cards

With the above conditions met the issue is triggered by the port channel undergoing a switchover and the newly active link being on a different line card to the previously active link.
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