[j-nsp] MTU on switch interfaces

[Tom Storey]

But would that be +14 assuming no VLAN headers, +18 assuming 1 VLAN
header, +22 assuming q-in-q ?

Was always my understanding that JunOS MTU figures were on-the-wire
frame sizes, whereas Cisco was always payload sizes, with requisite
headers accounted for automagically.

On 19 December 2015 at 16:23, Mark Tinka <mark.tinka at seacom.mu> wrote:
>
>
> On 19/Dec/15 05:23, Victor Sudakov wrote:
>
>> Dear Colleagues,
>>
>> The MTU on EX4200 ports in port-mode access is 1514 bytes. Shouldn't
>> it become 1518 bytes when the port is reconfigured in port-mode trunk ?
>
> You can set the interface MTU on the EX4200 to whatever you want; up to
> 9,192 bytes.
>
>>
>> And if I want to configure the MTU on an EX4200 to match MTU=2000 on a
>> Cisco Catalyst, what would be the correct value? 2014? 2018?
>
> +14 bytes on the Juniper for whatever you have running on IOS and IOS XE.
>
> Mark.
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