Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide - Manual (Page 315)

device(config-vlan-2)#vlan 3
device(config-vlan-3)#tagged ethernet 1/1 to 1/4
device(config-vlan-3)#vlan 4
device(config-vlan-4)#tagged ethernet 1/1 to 1/4
device(config-vlan-4)#vlan 12
device(config-vlan-12)#spanning-tree priority 2
device(config-vlan-12)#tagged ethernet 1/1 to 1/4
device(config-vlan-12)#vlan 13
device(config-vlan-13)#tagged ethernet 1/1 to 1/4
device(config-vlan-13)#vlan 14
device(config-vlan-14)#tagged ethernet 1/1 to 1/4
device(config-vlan-14)#exit
The following commands configure the STP groups.
device(config)#stp-group 1
device(config-stp-group-1)#master-vlan 2
device(config-stp-group-1)#member-vlan 3 to 4
device(config-stp-group-1)#exit
device(config)#stp-group 2
device(config-stp-group-2)#master-vlan 12
device(config-stp-group-2)#member-vlan 13 to 14
Syntax: [no] stp-group num
This command changes the CLI to the STP group configuration level. The following commands are
valid at this level. The num parameter specifies the STP group ID and can be from 1 - 32.
Syntax: [no] master-vlan num
This command adds a master VLAN to the STP group. The master VLAN contains the STP settings
for all the VLANs in the STP per VLAN group. The num parameter specifies the VLAN ID. An STP
group can contain one master VLAN.
If you delete the master VLAN from an STP group, the software automatically assigns the first
member VLAN in the group to be the new master VLAN for the group.
Syntax: [no] member-vlan num [ to num]
This command adds additional VLANs to the STP group. These VLANs also inherit the STP settings
of the master VLAN in the group.
Syntax: [no] member-group num
This command adds a member group (a VLAN group) to the STP group. All the VLANs in the
member group inherit the STP settings of the master VLAN in the group. The num parameter
specifies the VLAN group ID.
NOTE
This command is optional and is not used in the example above. For an example of this command,
refer to
Configuration example for STP load sharing on page 315.
Configuration example for STP load sharing
The following figure shows another example of a STP per VLAN group implementation.
Configuration example for STP load sharing
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