Allied Telesis AT-S63 - Manual (Page 203)

AT-S63 Management Software Web Browser User’s Guide
Section IV: Spanning Tree Protocols 203
Figure 79. RSTP Port Status Window
The columns in the RSTP Port Status window are described here.
Table 37. RSTP Port Status Window
Column Definition
Port Displays the port number.
State Displays the RSTP state of the port. The
possible states for a port connected to
another device running RSTP are
Discarding and Forwarding.
The possible states for a port connected
to a device running STP are Listening,
Learning, Forwarding, and Blocking.
The possible states for a port not being
used or where spanning tree is not
activated is Disabled.
Role Displays the RSTP role of the port.
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.