ATM Subinterfaces

[kkalaycioglu]

On PA-A3-E3 port adapter I've performed an ATM pvc to my ISP with a config like this:

interface ATM2/0

ip address x.x.x.x y.y.y.y

no atm ilmi-keepalive

pvc 0/120

protocol ip z.z.z.z

encapsulation aal5snap

It doesn't work but if I use a point-to-point subif instead, it works. Why?? Is there any resource explaining this?

Best Regards.

[smif101]

Are you using a routing protocol with your ISP? If so it is the same as with working with frame-relay and you get timer issues and such. You need to add the broadcast keyword to the end of your protocol ip statement.

Jason Smith

www.smif101.com

[kkalaycioglu]

No, there's no routing protocol involved. Actually with physical int config, I can not ping the other side of the circuit but show atm pvc, sh interface atm2/0 and show atm map shows OK.

Regards.

[johnsos]

Is the service provider using Multipoint? I'm going to probably assume they are using Point-to-point since your probably not the only one using their service. See if you can use debug atm error to see what your getting for errors using your above config. Look over this document to see if this helps out also.

http://www.cisco.com/warp/public/121/debug_atm_err.html