From: ccie2be (ccie2be@nyc.rr.com)
Date: Tue Mar 08 2005 - 14:13:08 GMT-3
Here's one reason to disable cdp on the isdn interfaces:
If you're told to only allow certain type traffic to transit the isdn link
and that traffic doesn't include cdp, then you better disable cdp.
This is something that's easy to forget and overlook, so, I just disable cdp
as a matter of course on isdn interfaces.
HTH, Tim
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Richard Dumoulin
Sent: Tuesday, March 08, 2005 10:21 AM
To: Larry Roberts; Jonathan ZD
Cc: CCIE - GS
Subject: RE: ISDN & "no cdp enable" command
I believe in the past CDP would bring up the isdn line by default. It is not
true anymore. You can verify by ennabling cdp on the isdn and type debug
dialer packets. You'll see that cdp is not interesting,
-- Richard
-----Original Message-----
From: Larry Roberts [mailto:groupstudy@american-hero.com]
Sent: Tuesday, March 08, 2005 4:18 PM
To: Jonathan ZD
Cc: CCIE - GS
Subject: Re: ISDN & "no cdp enable" command
Its to prevent CDP from bringing up the link.
Depending on how your circuit is brought up you may or may not need to
have this command.
it never hurts to have CDP disabled, its just not always needed.
Larry
Jonathan ZD wrote:
> Dear group,
>
> Sometimes I found "no cdp enable" command under ISDN int, sometimes I
don't.
> I've tried to find document that would explain the relationship between
this
> command and ISDN, but found none. Anyone knows what this command got to do
> with ISDN?
>
> Thanks,
>
> Jonathan
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
-- Thanks,Larry
This archive was generated by hypermail 2.1.4 : Sun Apr 03 2005 - 17:56:43 GMT-3