On Fri, Mar 27, 2009 at 9:28 PM, Rik Wade
<rik@rikwade.com> wrote:
On 27/03/2009, at 1:38 PM, Neil Gardner wrote:
>
> Good question, but it raises the ugly issue of who decides what
> traffic is high priority... Unless there are commercial arrangements
> in place, I'd suggest that the optimum strategy for all peers would be
> to mark ALL their traffic as high priority.
I'd suggest something like the following as policy:
- two classes, "bulk" and "priority"
- IX members are permitted to send n% of their IX connection bandwidth
as "priority" (matrix configuration enforced)
This way, the IX members can't swamp the matrix with more than n% of
the connectivity they pay for. Furthermore, it is up to the IX members
to decide which traffic they put in to this n% and this may vary for
each peer. Priority traffic between ISPs 'x' and 'y' may be VoIP, by
their own agreement. Priority traffic from Domestic Content Provider
'x' and all its peers may be streaming media.
It is up to the IX and its members to decide what n% is reasonable,
and scale the matrix accordingly. Other traffic classes or priorities
may be added, but considering too much initially just complicates the
matter.
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