Allied-telesis AT-S63 User Manual Page 329

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AT-S63 Management Software Web Browser Interface User’s Guide
Section IV: Spanning Tree Protocols 329
The MSTP Port Status - Port(s) page is shown in Figure 131.
Figure 131. MSTP Port Status - Port(s) Page
The MSTP Port Status page displays a table with the following
columns of information:
Port
The port number.
State
The MSTP state of the port. The possible states are:
Discarding - The port is discarding received packets and is not
submitting forwarded packets for transmission.
Learning - The port is enabled for receiving, but not forwarding
packets.
Forwarding - Normal operation.
Disabled - The port has not established a link with its end node.
Role
The MSTP role of the port. The possible roles are:
Root - The port that is connected to the root switch, directly or through
other switches, with the least path cost.
Alternate - The port offers an alternate path in the direction of the root
switch.
Backup - The port on a designated switch that provides a backup for
the path provided by the designated port.
Designated - The port on the designated switch for a LAN that has the
least cost path to the root switch. This port connects the LAN to the
root switch.
Master - Similar to the root port. When the port is a boundary port, the
MSTI port roles follow the CIST port roles. The MSTI port role is called
“master” when the CIST role is “root.”
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