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Cisco Bug: CSCup86326 - Need ability to adjust MTU on UCSM 1Gb mgmt interface

Last Modified

Sep 17, 2019

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

2.1(3d)A 2.2(1d)A 2.2(2c)A

Description (partial)

Symptom:
Certain scenarios such a Layer2 extension/OTV can add additional frame overhead.  The total frame size can exceed the standard 1500 MTU, causing fragmentation.
The UCSM CLI and GUI do not provide a mechanism to adjust the mgmt interface MTU size.
This is needed for customers trying to join UCSM to UCS Central over OTV link.

Conditions:
UCSM mgmt interface VLAN and UCS Central mgmt interface connected via OTV link
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