[j-nsp] Juniper EX4550 load balancing of MPLS traffic

[Luis Balbinot]

Thanks Mark.

That's for a LAG, right? Not ECMP traffic.

Luis

On Wed, Jun 3, 2015 at 3:18 AM, Mark Tinka <mark.tinka at seacom.mu> wrote:
>
>
> On 2/Jun/15 20:54, Luis Balbinot wrote:
>> Hi.
>>
>> If I have two EX4550s acting as P routers and they are connected by a
>> LAG how will the MPLS traffic be load balanced? How deep will the
>> hashing algorithm look into the packets?
>>
>> Juniper says these EXs cannot do MPLS and ECMP. Is this still true?
>
> We used the EX4550's as core switches back in 2012 - 2014, before
> migrating to another platform.
>
> They are able to hash Layer 2 traffic that is primarily MPLS-based. This
> was a major requirement for us because I've had bad experience with the
> EX4200 acting as a core switch where Ethernet payload is MPLS traffic.
>
> I've never ran MPLS on any EX box, but the EX4550 can certainly load
> balance Ethernet traffic if the payload is MPLS. It will look deep
> enough and hash against the payload that MPLS is carrying.
>
> Just don't try this on the EX4200. The EX4200 only supports hashing
> against IP and Ethernet traffic. Not sure what the newer EX switches can do.
>
> Mark.