TX packets overruns on vnet* Interfaces of KVM Hypervisors

Solution Verified - Updated -

Issue

  • TX packets overruns between 200-3000 packets on vnet* Interfaces of all KVM hypervisor hosts.

Example:

vnet1     Link encap:Ethernet  HWaddr FE:1A:4A:C0:01:57 
          inet6 addr: fe80::fc1a:4aff:fec0:157/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:234750 errors:0 dropped:0 overruns:0 frame:0
          TX packets:116257593 errors:0 dropped:0 overruns:891 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:48114746 (45.8 MiB)  TX bytes:46957366486 (43.7 GiB

Environment

  • Red Hat Enterprise Linux 6
  • KVM

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