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Non Vlan 99 traffic seen over Metro-E connection causing loss of communication

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Information

 
TitleNon Vlan 99 traffic seen over Metro-E connection causing loss of communication
Symptoms
  • Loss of communication across Metro-E connection 
  • Metro-E should only be seeing vlan 99 mac on uplink
    show mac port < port to Metro-E>
    port macs were showing MACS from numerous vlan 2xx  MACs on port and should only see Vlan 99 MACs
  • Internet issues
  • Loss of ping response
Environment
  • S-Series
  • All Firmware
Cause
Issue with Metro-E connection
Resolution
  • Copper connection between two switches that failed auto-neg and was at 100 Mbps. This link connects the switch to the S-Series and to Metro-E backbone
  • Replace link
Additional notes

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