Cisco WS-C2960S-24PD-L Software Guide - Page 142

Configuring CDP Chapter 6 Configuring the System 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. Figure 6-4 shows a command switch that can discover candidates and cluster members up to seven devices away from it. Figure 6-4 also shows the command switch connected 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 Discovering Cluster Candidates through CDP Undisclosed device displays as edge device Cluster command switch Catalyst 5000 series (CDP device that does not support clustering) 3 hops from command switch Up to 7 hops from command switch 33019 Beginning in privileged EXEC mode, follow these steps to configure the number of hops that CDP uses to discover candidate switches and cluster members: Step 1 Step 2 Step 3 Step 4 Command Purpose configure terminal Enter global configuration mode. cluster discovery hop-count number Enter the number of hops that you want CDP to search for cluster candidates and cluster members. end Return to privileged EXEC mode. show running-config Verify the change by displaying the running configuration file. The hop count is displayed in the file. 6-14 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-08