Topology:
Indicates if spanning tree topology is steady or undergoing reconfiguration.
(The time required for reconfiguration is extremely short, so no values other that “steady”
state are likely to be seen in this field.)
Root Id:
The priority and MAC address of the device in the Spanning Tree that this
switch has accepted as the root device, and the port has been connected to the root
device.
[RSTP Port Status]
Port/Group:
The number of a port or the ID of a static trunk.
VLAN Id:
VLAN ID number.
Path 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.
Edge Port:
Shows if this port is functioning as an edge port, either through manual
selection (see the RSTP Port Configuration table) or auto-detection. Note that if the
switch detects another bridge connected to this port, the manual setting for Edge Port will
be overridden, and the port will instead function as a point-to-point connection.
P2P Port:
Shows if this port is functioning as a Point-to-Point connection to exactly one
other bridge. The switch can automatically determine if the interface is attached to a
point-to-point link or to shared media. If shared media is detected, the switch will assume
that it is connected to two or more bridges.
Protocol:
Shows the spanning tree protocol functioning on this port, either RSTP or STP
(that is, STP-compatible mode).
Port State:
Shows the current port state includes designated port, root port or blocked
port.
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