The MPLS-OPS Archive

[fraanro <fraanro@arrakis.es>]

Hi, 

  IMHO, it is not something related to whether this is MPLS traffic or 
not. Depending on the exp bits of the MPLS traffic you are considering, 
it may be treated as high priority or best effort. Therefore, there is 
nothing special that gives priority to the MPLS traffic vs. the rest of 
the traffic, called in this case "best effort" (although that could 
also be an implementation option). You, as administrator, must ensure 
that the MPLS labeled traffic is processed in the queue according with 
the priority you want it to have (either due to its exp bits or based 
on the label (when it be supported)). 

Javier.

----- Mensaje Original -----
Remitente: stephen mullaney <stephen.mullaney@parc-technologies.com>
Fecha: Miércoles, Enero 30, 2002 11:14 am
Asunto: MPLS/"Best Effort" Bandwidth Contention

> Hi there,
> 
> This may be a Cisco specific question, but....
> 
> For a given link which carries both a MPLS guaranteed tunnel and 
> some "best
> effort" non-MPLS traffic how is the bandwidth constraint for the 
> tunnelenforced.
> 
> eg if the tunnel is 20M and the link is 100M, I assume that if no 
> othertraffic is on the link, the tunnel can use more than the 20M 
> assigned to it.
> But when "best effort" traffic starts to traverse the link, how 
> are the two
> types of traffic treated. Is the MPLS traffic pushed-down to its 
> bandwidthguarantee as the best-effort increases? Do both types of 
> traffic get the
> same treatment/queuing? What is the algorithm for differentiation? 
> etc?
> Thanks
> Stephen
> 
> 
> 
> 
> 
> 
> 

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