Managing STA Interface Settings
You can configure STA attributes for specific interfaces, including port priority,
path cost, and fast forwarding. You may use a different priority or path cost for
ports of same media type to indicate the preferred path.
Command Attributes
The following global attributes are read-only and cannot be changed:
> Port Status – Displays current state of this port within the Spanning Tree:
>> Disabled - The port has been disabled by the user or has failed diagnos-
tics.
>> Blocking - Port receives STA configuration messages, but does not for-
ward packets.
>> Listening - Port will leave blocking state due to a topology change, start
transmitting configuration messages, but does not yet forward packets.
>> Learning - Port has transmitted configuration messages for an interval set
by the Forward Delay parameter without receiving contradictory informa-
tion. Port address table is cleared, and the port begins learning address-
es.
>> Forwarding - Port forwards packets, and continues learning addresses.
>> Broken - Port is malfunctioning or no link has been established.
> Forward Transitions – The number of times this port has transitioned from the
Learning state to the Forwarding state.
> Designated Cost – The cost for a packet to travel from this port to the root in
the current Spanning Tree configuration. The slower the media, the higher the
cost.
> Designated Bridge – The priority and MAC address of the device through
which this port must communicate to reach the root of the Spanning Tree.
> Designated Port – The priority and number of the port on the designated
bridging device through which this switch must communicate with the root of
the Spanning Tree.
> Trunk Member – Indicates if a port is a member of a trunk.
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