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Cisco Bug: CSCul85587 - TNC reports ethernetOsc_Tx: muxSend failed after repeated reset

Last Modified

Feb 02, 2017

Products (1)

  • Cisco ONS 15454 Series Multiservice Provisioning Platforms

Known Affected Releases


Description (partial)

TNC reports ethernetOsc_Tx: muxSend failed

On a M6 node with TNC-E cards, 

1)provisioned OC3 OSC on Slot-1 port-1 and GE OSC on slot-8 port-1. 

2)node is made accessible only via OSC channels 

3)Now restarted the controllers repeatedly one after the other with timeout of 6 mins. 

4)After 7 such resets, the TNC-E inslot-8 started reporting the below prints and the standby card started going for roll reboot because it lost the heartbeat with Active. 

pdccTx: ethernetOsc_Tx failed for pdcc 73


LNE 151 ------ OSC ----- 171 (non-LNE)


Reproduciblity : 100%
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