[a-nsp] 7050SX MPLS ?

[Patrik Olsson]

> 
> On 1/26/21 13:17, Patrik Olsson wrote:
> 
>> Arista switch ports have L2 jumbo frames by default (9214 bytes).
>> 
>> Routed ports (SVI and non switch ports) have default IP MTU 1500 bytes.
>> 
>> So the uplink between 7050SX and ASR9k need to be IP MTU enough to have room for any VLAN headers aswell as MPLS tags.
>> 
>> 7050SX only supports LDP L2circuits.
> 
> Because what the OP describes seems like an MTU issue on the interface that is running MPLS (physical or virtual).
> 
> Would raising that be the simple solution?
> 


Yepp, raising the IP MTU on any SVIs or routed ports (non switchports) that is not CE facing will solve the problem.

Thx
Patrik