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Packet loss reported on tunl0 Interface after FOS upgrade

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Applies to

  • Brocade siwtches
  • Fabric Operating System- FOS

Issue

  • After upgrading Brocade switch FOS, maps reports packet loss on the tunl0 interface
Example:
Interface 'tunl0' Status: up (admin: up), PacketsInDiscard: 30.46% (584 on 1917), PacketsInError: 0.00% (0 on 1917)
tunl0  Link encap: IPIP Tunnel  HWaddr
      NOARP  MTU:1480  Metric:1
      RX packets: 0 errors: 0 dropped: 0 overruns: 0 frame: 0
      TX packets: 0 errors: 0 dropped: 0 overruns: 0 carrier: 0
      collisions: 0 txqueuelen: 1000
      RX bytes: 0 (0.0 B)  TX bytes: 0 (0.0 B)
  • No impact is observed on production or Fibre Channel ports.

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