HP procurve 8100fl series Management And Configuration Manual page 132

Spanning-Tree Operation
Configuring MSTP
N o t e
C a u t i o n
9-16
2. Configure MST instances.
• Configure one instance for each VLAN group that you want to operate
as an active topology within the region to which the switch belongs.
When you create the instance, you should include a minimum of one
VID. You can add more VIDs later if desired.
spanning-tree instance <mvst_instance>
To move a VLAN from one instance to another, first enter the
configuration mode for that instance, and then unmap the member­
vlan <vid>. For example, to unmap VLAN 15 from spanning tree
instance 2, you would enter:
ProCurve(config)# spanning tree instance 2
Enters configuration context for spanning-tree instance 2.
ProCurve(config-mst)#no member-vlan 15
Unmaps VLAN 15 from spanning tree instance 2.
Next add the VLAN to the other instance by entering the spanning-
tree instance configuration mode and then mapping the member-vlan
<vid> to that instance. For example, to re-map VLAN 15 to spanning
tree instance 3, you would enter:
ProCurve(config)# spanning tree instance 3
ProCurve(config-mst)#member-vlan 15
When a VLAN is unmapped from an MSTI, it is associated with the
Internal Spanning Tree (IST) instance. VLAN 1 is always associated
with the IST instance and cannot be mapped to a new MSTI.
• Configure the priority from within the configuration mode for each
instance.
priority <priority-multiplier>
3. Configure MST instance port parameters (within the interface configura­
tion context for each port).
Configuring port parameters without enabling STP moves the individual
ports to a blocking state. You must first enable spanning-tree, and then
configure port parameters such as edge-port, hello-time, and path-cost.
a. Configure spanning-tree on individual ports using the spanning-tree
enable command.
b. Enable spanning-tree edge-port for ports connected to end nodes (see
page 9-20), but leave it disabled (the default) for connections to
another switch, a bridge, or a hub.