Configuring Cdp For Extended Discovery - Cisco WS-C2955T-12 Software Manual

Configuring CDP

Configuring CDP for Extended Discovery

You can change the default configuration of CDP on the command switch to continue discovering
devices up to seven hops away.
cluster members up to seven devices away from it.
to a Catalyst 5000 series switch. Although the Catalyst 5000 supports CDP, it does not support
clustering, and the command switch cannot learn about connected candidate switches connected to it,
even if they are running CMS.
Figure 6-4
device displays
as edge device
Catalyst 5000 series
support clustering)
Beginning in privileged EXEC mode, follow these steps to configure the number of hops that CDP uses
to discover candidate switches and cluster members:
Command
Step 1
configure terminal
Step 2 cluster discovery hop-count number Enter the number of hops that you want CDP to search for cluster candidates
Step 3 end
Step 4
show running-config
Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
6-14
Discovering Cluster Candidates through CDP
Undisclosed
(CDP device
that does not
Purpose
Enter global configuration mode.
and cluster members.
Return to privileged EXEC mode.
Verify the change by displaying the running configuration file. The hop
count is displayed in the file.
Figure 6-4 shows a command switch that can discover candidates and
Figure 6-4
Cluster command switch
3 hops from
command switch
Chapter 6 Configuring the System
also shows the command switch connected
Up to 7 hops
from command switch
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