Campus Switching and Routing

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MAS: Configured MTU Isn't Displayed

I set the MTU to 1500 bytes on a port channel interface group, but noticed the MTU size was not reflected when I did a show interface port-channel #. The default MTU of 1514 was displayed.  I tried configuring the MTU on a physical port that is not a member of the port channel and the proper MTU was displayed.  Not sure if this is a cosmetic bug or how it's intended to work.  I'm seeing this on 7.3.0.1

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Re: MAS: Configured MTU Isn't Displayed

If you set it to 1486, what is displayed in the show output?


Tim Cappalli | Aruba Security TME
@timcappalli | timcappalli.me | ACMX #367 / ACCX #480
Contributor II

Re: MAS: Configured MTU Isn't Displayed

 

Hi "thecompnerd"

I tried with MTU ranging from 64 to 9216 (including 1500).
It reflects properly:

(MDF-2) (port-channel "1") #mtu 64
(MDF-2) (port-channel "1") #show interface port-channel 1 | include MTU
MTU 64 bytes

(MDF-2) (port-channel "1") #mtu 1486
(MDF-2) (port-channel "1") #show interface port-channel 1 | include MTU
MTU 1486 bytes

(MDF-2) (port-channel "1") #mtu 1500
(MDF-2) (port-channel "1") #show interface port-channel 1 | include MTU
MTU 1500 bytes

(MDF-2) (port-channel "1") #mtu 1514
(MDF-2) (port-channel "1") #show interface port-channel 1 | include MTU
MTU 1514 bytes

(MDF-2) (port-channel "1") #mtu 9216
(MDF-2) (port-channel "1") #show interface port-channel 1 | include MTU
MTU 9216 bytes


Above was tried with both static & lacp based port-channel interfaces, with 7.3.0.1.

rgds,

-Vinay

 

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