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Cisco 5020 MTU

I would like to set the MTU on all the eth interfaces to 4000. I don't think this can be done per port by simply doing MTU 4000. I believe I have to set up a policy and class map to do this now then apply that map to an individual interface. I need assistance with this. i need something simple to just set the mtu size. not worried about bandwidth, priority or the like. i want this applied to both incoming and outgoing traffic.

1 REPLY
Bronze

Re: Cisco 5020 MTU

policy-map 4k-frames

class class-default

mtu 4000

!

system qos

service-policy 4k-frames

!

end

That will do it.

The policy map is matching class-default traffic (everything by default) and giving it a 4K mtu. You're applying it to the entire system.

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