Displaying Topology Group Information - HP ProCurve 9304M Installation And Configuration Manual

HP9300(config-topo-group-2)# master-vlan 2
HP9300(config-topo-group-2)# member-vlan 3
HP9300(config-topo-group-2)# member-vlan 4
HP9300(config-topo-group-2)# member-vlan 5
HP9300(config-topo-group-2)# member-group 2
These commands create topology group 2 and add the following:
• Master VLAN 2
• Member VLANs 2, 3, and 4
• Member VLAN group 2
Syntax: [no] topology-group <group-id>
The <group-id> parameter specifies the topology group ID and can be from 1 – 256.
Syntax: [no] master-vlan <vlan-id>
This command adds the master VLAN. The VLAN must already be configured. Make sure all the Layer 2 protocol
settings in the VLAN are correct for your configuration before you add the VLAN to the topology group. A topology
group can have only one master VLAN.
NOTE: If you remove the master VLAN (by entering no master-vlan <vlan-id>), the software selects the next-
highest numbered member VLAN as the new master VLAN. For example, if you remove master VLAN 2 from the
example above, the CLI converts member VLAN 3 into the new master VLAN. The new master VLAN inherits the
Layer 2 protocol settings of the older master VLAN.
NOTE: If you add a new master VLAN to a topology group that already has a master VLAN, the new master
VLAN replaces the older master VLAN. All member VLANs and VLAN groups follow the Layer 2 protocol settings
of the new master VLAN.
Syntax: [no] member-vlan <vlan-id>
The <vlan-id> parameter specifies a VLAN ID. The VLAN must already be configured.
Syntax: [no] member-group <num>
The <num> specifies a VLAN group ID. The VLAN group must already be configured.
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:
HP9300(config)# 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
This example shows STP information for VLAN 4. The line shown in bold type indicates that the VLAN's 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.
Configuring Metro Features
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