[Asterisk-Users] QoS anyone?

Rich Adamson radamson at routers.com
Fri Jan 16 20:35:21 MST 2004


> > I would be surprised to find this.  Typically ISP's will reset all QOS
> > settings to 0 either on your CPE router if they manage it or on the
> > aggregation router your circuit is connected to.  Almost always if they
> > support DSCP/TOS matching and priority queuing in the core of their
> > network it's part of an extra charge service. If they don't do any
> > priority queuing then they typical will just leave it alone and ignore it.
> >
> > - Dustin -
> >
> 
> My guess is the only way to really find out would be to test each carrier
> individually and then test interconnects. That would get messy fairly
> quickly.

Very difficult for sure, given the dynamic route changes that occur, etc.

> The best we can do is pick endpoints that we care about (site-to-site, etc)
> and sniff the packets to see if the bits are still set. If they are, that
> doesn't mean that the carrier is actually prioritizing, just not zero'ing
> them out.

In process, but as noted, very difficult to prove without a doubt.

But, extemely interesting to say the least. Obviously more real-time reseach
to come.






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