[c-nsp] Frame to ATM

[Joe Maimon]

Jason Berenson wrote:
> Greetings,
> 
> We just got a new Covad DS3 and ordered an end T1 as frame relay.  The 
> backhaul is ATM.  Here's my network:


Covad will perform FRF ATM conversion for you. You just take the pvc and 
do your ip routing on it.

Now if you want a multilink configuration, thats a bit different.

This is the simplest way to do it

CPE

conf t
int s0
no ip addr
enc fra IETF
frame-relay lmi-type ansi
int s0.16 p
ip address  10.3.4.210 255.255.255.252
frame-relay interface-dlci 16
ip route 0.0.0.0 0.0.0.0 s0.16 10.3.4.209
end

CORE

conf t
int a3/0.70 p
ip address 10.3.4.209 255.255.255.252
pvc 0/70
end


> 
> customer (dlci 16 and 17) --> covad cloud --> atm switch (0/xxx) --> atm 
> switch (0/xxx) --> cisco 7206 (atm pvc)

Why dlci 16 and 17?

> 
> Here's what I did on the customer router:
> 
> interface Serial0
>  no ip address
>  encapsulation frame-relay IETF
>  no fair-queue
>  frame-relay lmi-type ansi
> !
> interface Serial0.1 point-to-point
>  frame-relay interface-dlci 17 ppp Virtual-Template17

Why are you bothering with ppp?

> !
> interface Virtual-Template17
>  ip address 10.3.4.210 255.255.255.252
> !
> 
> Here's the core:
> 
> interface ATM3/0.26 point-to-point
>  pvc 0/70
>   ip addr inarp
>   protocol ppp Virtual-Template1000
>  !
> interface Virtual-Template1000
> ip address 10.3.4.209 255.255.255.252

Why are you bothering with ppp?

Just put the IP address on the subinterface.

> !
> 
> I'm not sure if this is going to work yet.  Has anyone done this 
> before?  If so, does this look right?
> 
> Thanks,
> Jason


Its fairly common.