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Configuring Spanning Tree
Defining Multiple Spanning Tree
ESW 500 Series Switches Administration Guide
MSTP Interface Table Page
MSTP Interface Table Page
The
•
Instance — Defines the VLAN group to which the interface is assigned.
•
Interface — Indicates the port or EtherChannel for which the MSTP settings are
displayed.
•
Role — Indicates the port role assigned by the STP algorithm in order to
provide to STP paths. The possible field values are:
-
Root
— Provides the lowest cost path to forward packets to root device.
-
Designated
designated device is attached to the LAN.
-
Alternate
— Provides an alternate path to the root device from the root
interface.
-
Backup
— Provides a backup path to the designated port path toward
the Spanning Tree leaves. Backup ports occur only when two ports are
connected in a loop by a point-to-point link. Backup ports also occur
contains the following fields:
— Indicates the port or EtherChannel via which the
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