[c-nsp] Frame Relay over ADSL

Manaf Oqlah moqlah at batelco.jo
Wed Feb 22 02:57:48 EST 2006

We are going to use ADSL line to map frame relay dlci through l2tp tunnel to
the frame relay cloud as follow:
|Branch|--(pppoe)--|LNS Router|---|IP Cloud|---|Frame Relay
Cloud|---|HeadQuarter HQ|

What is the configuration on the LNS router to map the branch dlci to the HQ


-----Original Message-----
From: Oliver Boehmer (oboehmer) [mailto:oboehmer at cisco.com] 
Sent: Tuesday, February 21, 2006 8:25 PM
To: Oliver Boehmer (oboehmer); Manaf Oqlah; cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] Frame Relay over ADSL

Oliver Boehmer (oboehmer) <> wrote on Tuesday, February 21, 2006 7:16

> Manaf Oqlah <> wrote on Tuesday, February 21, 2006 9:56 AM:
>> Could any one help to find a solution for frame relay backup using
>> ADSL instead of ISDN.
> can you pls describe the requirements a bit more in detail? Maybe it
> would help us if you could tell which part of the solution you need
> help with. i.e. where you got stuck.  
> Replacing floating statics on the client pointing to the ISDN-Dialer
> to point to a FR (sub)interface sounds trivial, so apparently it is
> something else.  
> I could imagine that the routing setup on the hub site (where the FR
> circuits arrive) is more complex than with PPP sessions which go up
> when the backup is active and go down when the primary link is
> restored. FR is likely always "up"..   

Oh, bummer, I totally mis-read your question.. back to the beginner's
class, Oli.

so you want to use a DSL link as backup, instead of an ISDN link?
Simple: use pppoe-client with DDR ("pppoe-client  dial-pool-number <n>
dial-on-demand") functionality, so your PPPoE dialer will only come up
when interesting traffic triggers it, just like an ISDN dialer. there
you go.

Or am I still wrong?


More information about the cisco-nsp mailing list