Cisco WS-C2960S-48TD-L Software Guide - Page 111

Chapter 5 Clustering Switches Planning a Switch Cluster Discovery of Newly Installed Switches To join a cluster, the new, out-of-the-box switch must be connected to the cluster through one of its access ports. An access port (AP) carries the traffic of and belongs to the management VLAN. By default, the new switch and its access ports are assigned to management VLAN 1. When the new switch joins a cluster, its default management VLAN changes to the VLAN of the immediately upstream neighbor. The new switch also configures its access port to belong to the VLAN of the immediately upstream neighbor. The command switch in Figure 5-6 belongs to management VLAN 16. When the new Catalyst 2900 LRE XL and Catalyst 2950 switches join the cluster, their management VLAN and access ports change from VLAN 1 to VLAN 16. Figure 5-6 Discovery of Newly Installed Switches Command switch VLAN 16 Catalyst 2950 switch (Management AP VLAN 16) VLAN 16 New (out-of-box) Catalyst 2900 LRE XL switch VLAN 16 Catalyst 3500 XL switch AP (Management VLAN 16) VLAN 16 New (out-of-box) Catalyst 2950 switch 65581 78-6511-08 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 5-11