Discovery Of Newly Installed Switches - Cisco 2950G 24 - Catalyst Switch Software Configuration Manual

Planning a Switch Cluster
Figure 6-6
Catalyst 2900 XL,
Catalyst 2950, and
Catalyst 3500 XL

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 (running a release earlier than Release 12.1(9)EA1) in
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.
The command switch (running Release 12.1(9)EA1 or later) in
When the new Catalyst 3550 and Catalyst 2950 switches join the cluster:
•
•
Catalyst 2950 Desktop Switch Software Configuration Guide
6-10
Discovery through Different Management VLANs with a Layer 3 Command Switch
Switch 3
(management
VLAN 16)
VLAN 16
Catalyst 1900,
Catalyst 2820,
Switch 4
(management
VLAN 16)
switches
The Catalyst 3550 switch and its access port are assigned to VLAN 9.
The Catalyst 2950 switch and its access port are assigned to management VLAN 16.
Catalyst 3550
command switch
Si
VLAN 16
VLAN 62
Switch 5
(management
VLAN 62)
VLAN trunk 4, 62
Switch 7
(management
VLAN 4)
VLAN 62
Switch 9
(management
VLAN 62)
Chapter 6
Catalyst 3550
standby command switch
VLAN 9
Si
VLAN 9
Switch 6
(management
VLAN 9)
VLAN 9
Switch 8
(management
VLAN 9)
VLAN 4
Switch 10
(management
VLAN 4)
Figure 6-7
Figure 6-8 belongs to VLANs 9 and 16.
Clustering Switches
belongs to
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