Hi,
Ensure you have cdp enabled on the serial ports as well as the ethernet port.
Teunis,
Hobart, Tasmania
Australia
On Thursday, December 14, 2000 at 09:13:32 PM, Pierre-Alex wrote:
> I have 2 routers. They are connected back to back via serial port. The
> routers Ethernet ports are connected to a switch. When I use show cdp nei on
> any of the router, I only see information about the switch. Why is it so?
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Tony van Ree
> Sent: Wednesday, December 13, 2000 3:41 PM
> To: CCIE TB; [EMAIL PROTECTED]
> Subject: Re: What can CDP offer ?
>
>
> Hi Adia,
>
> I have found that CDP allows a bundle of good things. Below are some
> examples,
>
> A couple of switches on different LAN's the client tells me are configured
> correctly on each LAN with the correct SNMP community name cannot be
> discovered using SNMP and he cannot Telnet to them. I am the supplier of
> the routers.
>
> I perform a "sh cdp nei det" and in an instant can tell my client what he
> has done is configured the switches on a bench in his office. Put them into
> the car and delivered each switch to the wrong building and therefore the
> switches are configured for a different LAN.
>
> On an FDDI link a major client can see the services on the ring but cannot
> get data from point A to B. A quick glipmse "sh cdp nei det" once again
> reveals the two routers in question have an IP address mixup. In this case
> both the same IP address. Looking through the ARP table would confirm this
> but the there were several hundred entries there.
>
> I wanted to know if I had exactly matched my drawing for a switched network
> having some 50 2900XL switches going into a 5500. I also needed to document
> serial no.s etc. "sh cdp nei" gave me where the switches were. It was a
> simple matter antering the data into the 5500 so this was in a sense self
> documenting. A cut and paste of the details gave me the resto of my doco.
>
> When IP, AppleTalk and/or IPX fails CDP might still be there and show
> config issues.
>
> CDP is very handy.
>
> Teunis,
> Hobart, Tasmania
> Australia
>
>
> On Tuesday, December 12, 2000 at 11:25:44 PM, CCIE TB wrote:
>
> > Hi group members,
> >
> > I'm just wondering...if you can access a router by telneting to it, you
> can
> > get most of the information that you will get through CDP. Then what is
> the
> > benefit of CDP?
> >
> > Thanks to all
> >
> > Adia
> >
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