Re: [mpls] FW: New Version Notification for draft-keten-mpls-expbit-00.txt

[Mark Tinka <[e-mail]>]

On 14/Sep/16 14:27, Umut Keten wrote:

> Alexander hi,
>
> I don't agree. I think we need more QoS classes. I personally could do
> with a lower class then BE, something like a trash class.
>
> I can map the lowest to BE and thats it, but some services I would
> like to map lower.
> Mapping the more important BE one higher then BE is no option, it
> would affect other services.
>
> Saying we don't need more QoS, surely you can't mean that.

I don't think we need more QoS.

We run 4 classes, 1 of which is reserved for NC. So effectively, we run
3 classes for actual service (BE, AF and EF). We've struggled to use
anything more, not that we are trying.

The issue with QoS is not the number of classes you have, but how much
classification you realistically do. This is a lot more difficult in a
service provider network compared to the enterprise. The fact that MPLS
is protocol-independent also means adding more classes to it somewhat
defeats the purpose.

But, YMMV.

Mark.