Nexus 5548 MTU

[TIM POTTICARY]

I need to enable jumbo frames on a Nexus 5548. I only need this on four 10G ports for Netapp fillers.

Can I enable jumbo frames on only these ports or do I have to do this under the default class? if so will this affect traffic in the default class that does not use jumbo frames?

[dominic.caron]

In my experience, if you enable jumbo frame in your datacenter, you better do it on every switch and port. It will not affect other trafic in class default.

[Jerry Ye]

There are two type of MTU in the Nexus 5500. L2 and L3.

For L2, you have to do it under the network qos, which is a system wide configuration.

For L3, it is per interface. Meaning you have to apply it on every SVIs, L3 PO and L3 physical interfaces.

HTH,

jerry