234 CHAPTER 11: CONFIGURING SPANNING TREE
Defining Multiple
STP 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 the MSTP instance settings using the
Multiple STP Instance Summary Page
.
To view Multiple STP:
1 Click Policy > Spanning Tree > Multiple STP> Instance Summary. The
Multiple STP Instance Summary Page opens:
Figure 120 Multiple STP Instance Summary Page
The Multiple STP Instance Summary Page
contains the following fields:
■ Instance ID — Specifies the VLAN group to which the interface is
assigned.
■ Included VLAN — Maps the selected VLANs to the selected instance.
Each VLAN belongs to one instance.
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