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Nexus 5548 MTU

TIM POTTICARY
Level 1
Level 1

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?

2 Replies 2

dominic.caron
Level 5
Level 5

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.

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

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