Discovery Of Newly Installed Switches - Cisco Catalyst 3550 series Software Configuration Manual

Chapter 6 Clustering Switches
Figure 6-7
(management

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 only one VLAN. By default, the
new switch and its access ports are assigned to VLAN 1.
When the new switch joins a cluster, its default 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
non-LRE switches join the cluster:
•
•
78-11194-09
Discovery through Routed Ports
Command switch
VLAN 9
Si
RP
RP
VLAN 62
VLAN
Si
VLAN 62
VLAN 62)
VLAN 4
Figure 6-8
The Catalyst 3550 switch and its access port are assigned to VLAN 9.
The non-LRE Catalyst 2950 switch and its access port are assigned to management VLAN 16.
9
Si
VLAN 9
Member
switch 7
belongs to VLANs 9 and 16. When the new Catalyst 3550 and
Catalyst 3550 Multilayer Switch Software Configuration Guide
Planning a Switch Cluster
6-11