[c-nsp] activating MLP on ATM ADSL

[Adam Greene]

Hi Robert,

Thanks for the questions.

I had hoped that the configurations I posted in the original message would 
shed light on how the users are connecting. I am pretty green at DSL 
configurations. My impression is that this is PPPoEoA because I am using the 
pppoe protocol on ATM interfaces. That sounds consistent with what you are 
saying, as there are also vpdn configurations on the head end router, PVCs 
are being utilized, and the clients appear to be dialing in (they have 
Dialers configured).

But I might not have the terminology straight. I'll look into PPPoA and see 
whether we can support that over the underlying infastructure (Verizon DSL).

Thanks for offering to share the PPPoA config. Looks like that might be the 
only alternative, if PPPoEoA is not supported.

Thanks,
Adam

P.S. At the end of this message I have reposted the head-end / client 
configurations in case that helps at all ....


---- Original Message ----- 
From: "Robert Boyle" <robert at tellurian.com>
To: "Adam Greene" <maillist at webjogger.net>; <cisco-nsp at puck.nether.net>
Sent: Saturday, October 06, 2007 10:40 PM
Subject: Re: [c-nsp] activating MLP on ATM ADSL


> At 05:42 PM 10/5/2007, Adam Greene wrote:
>>I've been tasked with bonding some ATM ADSL links together into a 
>>multilink
>>bundle. The objective is to enable customers to double their throughput by
>>obtaining (2) DSL lines from us.
>>
>>The head end is a 7206 (NPE200) running C7200-IS-M 12.3(15b). The CPE end 
>>is
>>a Cisco 1841 running (C1841-IPBASE-M) 12.4(1c).
>
> Adam,
>
> You don't mention how your DSL users are connecting. Are you using direct 
> PVCs? PPPoE? PPPoA? or PPPoEoA? It is not supported over PPPoEoA which is 
> where a range or single PVC terminates on a vpdn group. You must use 
> PPPoA. I wish PPPoEoA  was supported, but it is not. We are working on a 
> good PPPoA config now. Once we have it, we will share it.
>
> -Robert
>
>


Current configurations:

=============
7206 HEAD END
=============

!
vpdn enable
vpdn ip udp ignore checksum
!
vpdn-group 1
 accept-dialin
  protocol pppoe
  virtual-template 1
 ip mtu adjust
!
interface ATM1/0
 bandwidth 44793
 no ip address
 no ip redirects
 no ip mroute-cache
 logging event subif-link-status
 atm scrambling cell-payload
 no atm ilmi-keepalive
!
interface ATM1/0.304 point-to-point
 ip unnumbered Loopback0
 ip access-group VerizonDSLIn in
 ip access-group VerizonDSLOut out
 pvc 1/304
  encapsulation aal5snap
  protocol pppoe
!
interface ATM1/0.305 point-to-point
 ip unnumbered Loopback0
 ip access-group VerizonDSLIn in
 ip access-group VerizonDSLOut out
 pvc 1/305
  encapsulation aal5snap
  protocol pppoe
!
interface Virtual-Template1
 mtu 1492
 ip unnumbered Loopback0
 ip access-group VerizonDSLIn in
 ip access-group VerizonDSLOut out
 peer default ip address pool pppoe-pool
 ppp authentication pap
!


========
1841 CPE
========

!
interface ATM0/0/0
 no ip address
 no ip mroute-cache
 no atm ilmi-keepalive
 dsl operating-mode auto
 hold-queue 224 in
 pvc 0/35
  encapsulation aal5snap
  pppoe-client dial-pool-number 1
 !
!
interface ATM0/1/0
 no ip address
 no ip mroute-cache
 no atm ilmi-keepalive
 dsl operating-mode auto
 hold-queue 224 in
 pvc 0/35
  encapsulation aal5snap
  pppoe-client dial-pool-number 2
 !
!
interface Dialer1
 ip address negotiated
 ip mtu 1492
 encapsulation ppp
 no ip mroute-cache
 dialer pool 1
 dialer idle-timeout 0
 dialer-group 1
 ppp authentication pap callin
 ppp pap sent-username ***** password 7 *****
!
interface Dialer2
 ip address negotiated
 ip mtu 1492
 encapsulation ppp
 no ip mroute-cache
 dialer pool 2
 dialer-group 2
 ppp authentication pap callin
 ppp pap sent-username ***** password 7 *****
!