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Securestack Not Passing Traffic and Messages Indicate Ports in Stalled Mode

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Information

 
TitleSecurestack Not Passing Traffic and Messages Indicate Ports in Stalled Mode
Symptoms
  • Switch stops passing traffic
  • Not responsive to SSH
  • Reset switch fixes for several minutes
  • Message shows port in stalled mode
    • <161>Apr 8 00:33:39 192.168.1.10 TXQMONITO[414924272]: txq_monitor.c(507) 60019 This is from manager 1 % Tx queue for interface ge.1.4 is in stalled mode
  • Disconnect the device on port in stalled mode and switch works normally
Environment
  • Securestack
  • C5-Series
  • Firmware 6.81.02.0007
  • PC and phone connected to same port
Cause
Pause frames received on port
Resolution
 1.  Disable flow control
set flowcontrol disable

2.   Notify Neighbor switches that Flow Control is disabled by clearing advertisement on ports
clear port advertise *.*.* pause
Additional notes
Disabling flow-control or clearing pause frame advertisement will cause a very short interruption in traffic and an STP topology change.

 

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