User`s guide

STA Information Screen
3-16 WebView Local Management Tasks
Port Status See the port’s current STA state. Options are:
Disabled - The port has been disabled by the user or has failed
diagnostics.
Blocked - The port receives STA configuration messages, but does
not forward packets.
Listening - The port will leave blocking state due to topology
change, will start transmitting configuration messages, but does not
yet forward packets.
Learning - The port has transmitted configuration messages for an
interval set by the Forward Delay parameter without receiving
contradictory information. The port address table is cleared, and the
port begins learning addresses.
Forwarding - The port forwards packets, and continues learning
addresses.
The rules defining port status are:
• A port on a network segment with no other STA compliant bridging
device is always forwarding.
• If two ports of a switch are connected to the same segment and there
is no other STA device attached to this segment, the port with the
smaller ID forwards packets and the other is blocked.
• All ports are blocked when the switch is booted, then some of them
change state to listening, to learning, and then to forwarding.
Forward
Transitions
See counts of the port’s forward transitions.
Designated Cost See the path cost from the transmitting port to the root.
Designated Bridge See the MAC address of the designated bridge to which the port
belongs. This is the switch that is closest to the root switch through
which frames will be forwarded to the root.
Table 3-9 STA Information Screen Element Descriptions (Continued)
Use this field… To…