From: Chuck Church (cchurch@optonline.net)
Date: Fri Dec 13 2002 - 02:53:23 GMT-3
The layer 3 information that CDP sends out depends on what interface that
CDP frame is leaving. If there's no IP address on that interface, CDP
appears to send out the IP address of whatever interface of the router that
has been up the longest. At least that's what testing here at home with
loopbacks is doing.
Chuck Church
CCIE #8776, MCNE, MCSE
----- Original Message -----
From: "ysy" <ysyhot@hotmail.com>
To: "Pratt, Jeremy" <JPratt@coh.org>
Cc: <ccielab@groupstudy.com>
Sent: Thursday, December 12, 2002 10:47 PM
Subject: Re: How to decide when CDP neighbor send its IP address
> RE: How to decide when CDP neighbor send its IP addressPratt, Jeremy ,
> How to config it , if my device have several interfaces
> (f0/0,f0/1,f0/2,s1/1,s1/0), f0/0 link to other device but no ip address ,
> whice interface ip is send to neighbor device.
>
> TKS!
> ysy
> ----- Original Message -----
> From: Pratt, Jeremy
> To: 'ysy'
> Cc: ccielab@groupstudy.com
> Sent: Friday, December 13, 2002 1:26 AM
> Subject: RE: How to decide when CDP neighbor send its IP address
>
>
> It's configurable depending on the device. It's a L2 broadcast that
occurs
> usually at 60 second intervals.
>
> -----Original Message-----
> From: ysy [mailto:ysyhot@hotmail.com]
> Sent: Tuesday, December 10, 2002 10:03 PM
> To: ccielab@groupstudy.com
> Subject: How to decide when CDP neighbor send its IP address
>
>
>
> Hi all,
> Because cdp isn't a layer three protocol ,How to decide when CDP
neighbor
> send its IP address?
>
>
>
> Thanks
> ysy
> .
> .
.
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