Brocade TurboIron 24X Series Configuration Guide - Manual (Page 310)

276 Brocade TurboIron 24X Series Configuration Guide
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Topology groups
NOTE
Once you add a VLAN or VLAN group as a member of a topology group, all the Layer 2 protocol
configuration information for the VLAN or group is deleted. For example, if STP is configured on a
VLAN and you add the VLAN to a topology group, the STP configuration is removed from the VLAN.
Once you add the VLAN to a topology group, the VLAN uses the Layer 2 protocol settings of the
master VLAN.
If you remove a member VLAN or VLAN group from a topology group, you will need to reconfigure the
Layer 2 protocol information in the VLAN or VLAN group.
Displaying topology group information
The following sections show how to display STP information and topology group information for
VLANS.
Displaying STP information
To display STP information for a VLAN, enter a command such as the following.
This example shows STP information for VLAN 4. The line shown in bold type indicates that the
VLAN STP configuration is controlled by VLAN 2. This information indicates that VLAN 4 is a
member of a topology group and VLAN 2 is the master VLAN in that topology group.
Displaying topology group information
To display topology group information, enter the following command.
Syntax: show topology-group [<group-id>]
This display shows the following information.
TurboIron#show span vlan 4
VLAN 4 BPDU cam_index is 14344 and the Master DMA Are(HEX) 18 1A
STP instance owned by VLAN 2
TurboIron#show topology-group
Topology Group 3
=================
master-vlan 2
member-vlan none
Common control ports L2 protocol
ethernet 1 MRP
ethernet 2 MRP
ethernet 5 VSRP
ethernet 22 VSRP
Per vlan free ports
ethernet 3 Vlan 2
ethernet 4 Vlan 2
ethernet 11 Vlan 2
ethernet 12 Vlan 2