Cisco WS-C2960-8TC-L Software Guide - Page 107
Discovery through Non-CDP-Capable and Noncluster-Capable Devices,
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Chapter 5 Clustering Switches Planning a Switch Cluster Discovery through Non-CDP-Capable and Noncluster-Capable Devices If a command switch is connected to a non-CDP-capable third-party hub (such as a non-Cisco hub), it can discover cluster-enabled devices connected to that third-party hub. However, if the command switch is connected to a noncluster-capable Cisco device, it cannot discover a cluster-enabled device connected beyond the noncluster-capable Cisco device. Figure 5-2 shows that the command switch discovers the Catalyst 3500 XL switch, which is connected to a third-party hub. However, the command switch does not discover the Catalyst 2950 switch that is connected to a Catalyst 5000 switch. Refer to the release notes (http://www.cisco.com/univercd/cc/td/doc/product/lan/c2900xl/index.htm) for the Catalyst switches that can be part of a switch cluster. Figure 5-2 Discovery through Non-CDP-Capable and Noncluster-Capable Devices Command switch Third-party hub (non-CDP-capable) Catalyst 3500 XL candidate switch Catalyst 5000 switch (noncluster-capable) Catalyst 2950 candidate switch 65290 78-6511-08 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 5-7