Discovery Through Non-Cdp-Capable And Noncluster-Capable Devices - Cisco WS-C2955T-12 Software Manual

Chapter 5 Clustering Switches

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
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
(non-CDP-capable)
Catalyst 3500 XL
candidate switch
78-6511-08
shows that the command switch discovers the Catalyst 3500 XL switch, which is connected
Discovery through Non-CDP-Capable and Noncluster-Capable Devices
Command switch
Third-party hub
Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
Catalyst 5000 switch
(noncluster-capable)
Catalyst 2950
candidate switch
Planning a Switch Cluster
5-7