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Tuning the igb interface in Solaris 11 or Solaris 10u11 for high packet rate environments to avoid packet loss (Doc ID 2034693.1)

Last updated on JUNE 27, 2021

Applies to:

Solaris Operating System - Version 10 1/13 U11 and later
Information in this document applies to any platform.

Symptoms

A customer was reporting igb buffer overflows, as shown by kstat missed_packets and norcvbuf counters, on igb NICs dedicated to high packet rate multicast exchange traffic.


The platform in this case was an X4-8 x86 machine, although this may also happen on SPARC systems with igb interfaces.

Changes

 Packet rates increased.

Cause

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