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Beginner

Hi, that one works for me but

Hi, that one works for me but it's enabling MTU 9126 on all interfaces. How to enable it only in specified interface?

And what's the disadvantage of enabling maximum MTU on all interfaces?
*ps : I'm using 10G link in all my network

Cisco Employee

Hi,

Hi,

You can't enable MTU per-interface on a Nexus 5000 or 5500, only per-switch.

Beginner

As long as you are not doing

As long as you are not doing routing on a 5K there is very little risk on turning it on.  If your 5K is Layer 2 only then only way it will get jumbo frames is if the server admins turn on jumbo support.  Typically jumbos are used on backend L2 connections between systems.

Beginner

Re: As long as you are not doing

Sorry this is a bit late into this discussion, but I have a pair of Nexus 5672's that are acting as my Data Center core. So, there is Layer 3 happening here. I have a Port-channel/VPC to a pair of ASA-5585's operating in a cluster, and I am being asked to enable jumbo frames to them on the Cluster links. Obviously I can't enable on per-port basis here, so, will enabling this globally be impactful? Thanks in advance

Beginner

Re: As long as you are not doing

Hi Rob, Did you enable jumbo on your switch? I am in a similar situation where I have to enable jumbo's on my 56128p pair which is the DC core. I am not sure if it has any negative impact. Would be great if you can share your experience. Thanks!

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