Configuring Spanning Tree
Defining Multiple Spanning Tree
ESW 500 Series Switches Administration Guide 293
Defining MSTP Instance Settings
MSTP maps VLANs into STP instances. Packets assigned to various VLANs are
transmitted along different paths within

Multiple Spanning Tree Regions

(MST
Regions). Regions are one or more Multiple Spanning Tree bridges by which
frames can be transmitted. In configuring MSTP, the MST region to which the
device belongs is defined. A configuration consists of the name, revision, and
region to which the device belongs.
Network Administrators can define MSTP Instances settings using the

MSTP

Instance Settings Page

.
STEP1 Click VLAN & Port Settings > Spanning Tree (STP) > MSTP > Instance Settings.
The

MSTP Instance Settings Page

opens:
MSTP Instance Settings Page
The

MSTP Instance Settings Page

contains the following fields:
•Instance ID — Lists the MSTP instances configured on the device.
•Included VLAN — Maps the selected VLAN to the selected instance. Each
VLAN belongs to one instance.
•Bridge Priority — Specifies the selected spanning tree instance device priority.
The field range is 0-61440.