Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Attention: The Community will be in read-only mode on 12/14/2017 from 12:00 am pacific to 11:30 am.

During this time you will only be able to see content. Other interactions such as posting, replying to questions, or marking content as helpful will be disabled for few hours.

We apologize for the inconvenience while we perform important updates to the Community.

New Member

debug for dsl disconnections


Which debug command is the most proper to gather useful data about DSL's performance and disconnection issues.

Hall of Fame Super Gold

Post the output to the

Post the output to the command "sh dsl interface".

hi,leo's suggestion would


leo's suggestion would surely show your DSL's performance.

as for debug commands, here's what i've got on my notes:

debug atm events

debug ppp authentication

debug ppp negotiation

debug ppp error

debug pppoe events

debug pppoe packet

New Member

Thanks for your replies. the

Thanks for your replies. the debug atm commands don't provide any useful data so that's why I post here in order to seek for more commands. I think the most relevant info for disconnections would be gathered from debug ppp negotiation and ppp error. 


sh dsl interface doesn't work so I will post the sh controllers vdsl 0 output in a couple of minutes.

Thanks again.



CreatePlease to create content