[nsp] newbie DSL question

[Chris Stone]

I think that'll depend on how your telco hands off the DSL circuits to you.
Qwest passes them to us on virtual cicuits over ATM. I have an ATM DS3 (ATM
T-1 also works) circuit coming into a 7206 router and configure it like, for
example:

interface ATM2/0.16 multipoint
 description Denver DSL
 ip broadcast-address 38.116.136.255
 ip helper-address 38.116.136.1
 atm pvc 32 1 32 aal5ciscoppp 256 256 Virtual-Template5
 atm pvc 33 1 33 aal5ciscoppp 256 256 Virtual-Template5
 atm pvc 34 1 34 aal5ciscoppp 640 640 Virtual-Template5
 atm pvc 35 1 35 aal5ciscoppp 256 256 Virtual-Template5
 atm pvc 36 1 36 aal5ciscoppp 640 640 Virtual-Template5
 atm pvc 37 1 37 aal5ciscoppp 640 640 Virtual-Template5
 .........

Which, like your 'picture' is:

End User ----> telco ATM network ----> our ATM DS3 ---> Internet

I have also run this in the past on a 2620 and an ATM T-1. Got to about 100
256/640 DSL users and found that it pretty much maxed out the T-1 circuit
and the router performance went down fast. Just a handful of users and you
should be just fine using a 2600 router.

Chris



> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Voll, Scott
> Sent: Friday, February 27, 2004 4:01 PM
> To: cisco-nsp at puck.nether.net
> Subject: [nsp] newbie DSL question
> 
> If I want to provide DSL service to a handful of users, how would I go
> about doing that?
> 
> What kind of configuration does it look like.
> 
> End user ---- telco DSL Line ------- Us as ISP ------ Internet?
> 
> What kind of line would I need to the telco and what kind of hardware?
> T1? 2600? Yes, No?
> 
> TIA
> 
> Scott
> 
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