[c-nsp] How can I increase Ethernet MTU?

Nikolay Shopik shopik at inblock.ru
Sat Jan 24 07:34:23 EST 2015


>From last time remember when we do changes on C3560X and any previous
models it involves to change "system mtu" command, and new setting only
apply after reboot (ASIC re-init)

On 24.01.2015 13:17, Victor Sudakov wrote:
> Colleagues,
> I have a network of about twenty C3560X switches switching IP-only traffic.
> Soon we will be enabling MPLS on some routers connected to this
> network, so the switches will have to handle frames with the MTU
> larger than the default 1500 bytes.
> How do I configure the switches to pass frames with MTU=1600, if
> possible, without disrupting the service? 
> I will be grateful for a link to some good howto.

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