Setting mtu to 9000 in SEFOS returns error "Invalid MTU value for this interface type"

Asset ID:	1-72-2289609.1
Update Date:	2017-07-24
Keywords:

Solution Type Problem Resolution Sure

Solution 2289609.1 : Setting mtu to 9000 in SEFOS returns error "Invalid MTU value for this interface type"

Applies to:

Oracle Switch ES1-24 - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Symptoms

When attempting to set the MTU to 9000, the error message "% Invalid MTU value for this interface type" is returned.

SEFOS# show run int ex 0/5

#Building configuration...
interface extreme-ethernet 0/5
mtu 1522
speed 100<--------------------------------Current configuration
switchport ingress-filter

SEFOS(config)# int ex 0/5
SEFOS(config-if)# mtu 9000
% Invalid MTU value for this interface type<------Error message returned

Cause

The interface was forced to 100Mb. MTU 9000 is not supported when interface is configured for 100Mb. A maximum mtu of 1523 is configurable on sefos if the speed is set to 100Mb

If mtu over 1522 is required, then the speed must be increased to 1000 Mb (1 gig) or 10000 (10 gig).

Solution

SEFOS# conf t
SEFOS(config)# int ex 0/5
SEFOS(config-if)# speed 1000<-----Speed must be 1000 or 10000
SEFOS(config-if)# mtu 9000
SEFOS(config-if)# end

SEFOS# show run int ex 0/5

#Building configuration...
interface extreme-ethernet 0/5
mtu 9000
speed 1000
switchport ingress-filter

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