[c-nsp] RSVP on a sub-rate ethernet interface?

Temkin, David temkin at sig.com
Fri Aug 6 09:48:42 EDT 2004


They drop, unfortunately. 

> -----Original Message-----
> From: Rodney Dunn [mailto:rodunn at cisco.com] 
> Sent: Friday, August 06, 2004 9:46 AM
> To: Temkin, David
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] RSVP on a sub-rate ethernet interface?
> 
> Do they drop anything over 50mbps or are you charged 
> differently for it?
> 
> The drawback to CAR is there isn't any backpressure so you 
> can't do any queueing for bandwidth allocation.
> It's a policer.
> 
> For the queueing part you would need to do MQC with 
> shaping/CBWFQ for bandwidth control.
> 
> Rodney
> 
> On Fri, Aug 06, 2004 at 09:30:04AM -0400, Temkin, David wrote:
> > I've got an ethernet interface that faces an Ethernet WAN provider 
> > that I'd like to use RSVP on, and I can't find any 
> reference on how to 
> > do it aside from on frame- I only get 50mbps from the provider, but 
> > the handoff is 100mb...  I'm wondering how RSVP + CAR behave...
> > 
> > My only other thought is to limit down what doesn't need guaranteed 
> > bandwidth to a number below what the max of that + what does need 
> > guaranteed bandwidth would add up to, but that's kind of ugly...
> > 
> > Thx,
> > -Dave
> > 
> > 
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