Discovery Of Newly Installed Switches - Cisco WS-C2955T-12 Software Manual

Chapter 5 Clustering Switches

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
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
Catalyst 2900 LRE XL
78-6511-08
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)
switch
Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
belongs to management VLAN 16. When the new
VLAN 16
Catalyst 3500 XL
switch
(Management
AP
VLAN 16)
VLAN 16
New (out-of-box)
Catalyst 2950
switch
Planning a Switch Cluster
5-11