[c-nsp] ATM and ABR (DSL termination)

[Ted Mittelstaedt]

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net]On Behalf Of Charles 
> Sprickman
> Sent: Thursday, January 27, 2005 7:35 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] ATM and ABR (DSL termination)
> 
> 
> Hi,
> 
> I'm stuck in a situation where we have a full ATM backhaul.  
> The order for 
> our next DS3 is stalled.  In the meantime I'd like to give 
> SDSL customers 
> a better shot at getting their money's worth...
> 
> Speaking with our Covad rep he mentioned that I should look at 
> setting up 
> ABR "shaping" on all of our PVCs. 

We don't do any abr on our vc's just ubr and vbr.  But, I can tell
you if your not shaping your outbound traffic on each vc at all your
in real trouble.  If you have a 45MB ATM feed to Covad and a sdsl 
subscriber has a 1MB pvc off that feed, you could theoretically be
throwing 44MB of bandwidth into the bit bucket for that one customer,
for a short period that is.

Ted