Product guide

Spanning-Tree Operation
802.1s Multiple Spanning Tree Protocol (MSTP)
Configuring MST Instance Parameters
Command Page
[no] spanning-tree instance < 1..16 > vlan < vid> [ vid..vid ] 6-66
no spanning-tree instance < 1..16 >
spanning-tree instance < 1..16 > priority <priority-multiplier > 6-67
spanning-tree priority <priority-multiplier> 6-68
Syntax: [no] spanning-tree instance < 1..16 > vlan < vid [ vid..vid ] >
no spanning-tree instance < priority-multiplier >
Configuring MSTP on the switch automatically configures the
IST instance and places all statically configured VLANs on the
switch into the IST instance. This command creates a new
MST instance (MSTI) and moves the VLANs you specify from
the IST to the MSTI. At least one VLAN must be mapped to a
MSTI when you create it. (A VLAN cannot be mapped to more
than one instance at a time.) You can create up to 16 MSTIs
in a region. Use the no form of the command to remove a VLAN
from an MSTI. (Removing a VLAN from an MSTI returns the
VLAN to the IST instance, where it can either remain or be re-
assigned to another MSTI configured in the region.)
The no form of the command deletes the specified VLAN, or if
no VLANs are specified, the no form of the command deletes
the specified MSTI.
6-66