[RHEL4.8 Snapshot1] The receiving performance deteriorates when setting MTU size to 4K or more on the interface that uses the igb driver on x86

Solution Unverified - Updated -

Issue

  • The receiving performance deteriorates when setting MTU size to 4K or more on the interface that uses the igb driver on x86.

Environment

  • Red Hat Enterprise Linux 4.8

  • 32-bit kernel

  • igb driver

  • MTU set to 4096 or greater on both host and remote host

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