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MTU physicla intefaces vs vlans MTU

Manu1
Nimbostratus
Nimbostratus

Hello,

About MTU, how does a Viprion behave when MTU is 9000 on physical interfaces but 1500 on vlans ?

Does he takes 9000 or 1500 ? What are the risks to have such a difference beetween MTUs ?

Thanks.

Manuel

1 REPLY 1

boneyard
MVP
MVP

after some searching i would say that traffic going through the VLAN uses 1500 and that having the interface on 9000 isn't an issue.

 

used this as a reference: https://serverfault.com/questions/633303/does-setting-mtu-on-logical-interfaces-affect-physical-interfaces