[j-nsp] Jumbo frames / mismatch MTU

[Chris Wopat]

On Fri, Apr 23, 2021 at 8:35 AM Matthew Crocker
<matthew at corp.crocker.com> wrote:
> Currently the ACX interface is:
>
> xe-0/3/0
> mtu 1600;
> unit 0 {
>     family inet {
>         sampling {
>             input;
>             output;
>         }
>         address 10.200.1.1/24;
>     }
>     family mpls;
> }

You could also `set interfaces xe-0/0/3.0 family inet mtu <value>` to
force the IP mtu without having to calculate from the interface MTU.
We've done this in spots where routers/switches have different
interface MTUs (9192 / 9216) to keep the value the same at layer3.