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Cisco Bug: CSCun12055 - Message about setting MTU above 1500 shown when jumbo frame is enabled

Last Modified

Nov 10, 2016

Products (1)

  • Cisco Adaptive Security Device Manager

Known Affected Releases


Description (partial)

On an ASA with jumbo reservation enabled but none of the MTUs set above 1500, go to Configuration > Device Setup > Interfaces.  Make any change to any of the interfaces (but don't change the MTU).  Click Appy - a message is shown 
     "Setting at least one interface MTU value about 1500 will enable jumbo frame reservation.  You will need to reboot for this setting to take effect."

But in fact no MTU has been changed, and all of them are at their default values (1500) - see the attached config.

Jumbo frame reservation is enabled on the ASA.
this issue is relating to only multi-context mode
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