Description

This KB explains the steps to be taken when "Oversized frames" statistics and "Input errors" are incrementing on an interface.

Symptoms

  • Jitter/Latency might be observed in the network.
  • Packet drops and traffic disruptions

Solution

  • Oversized frames—There are two possible conditions regarding the number of oversized frames:
    • Packet length exceeds 1518 octets, or
    • Packet length exceeds MRU

To resolve this issue,

1) Check the MTU between the source/Destination (PMTUD) and make sure the MTU is same or lowest across the network.

2) Configure the correct/matching MTU on the interface where the errors are observed.

 

Modification History

2024-01-30 : Article Created