W
EB
-B
ASED
M
ANAGEMENT
3-24
The rules defining port status are:
• A port on a network s egment 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.
• Al l ports are blocked when the switch is booted, then some
of them change state to listening, to learning, and then to
forwarding.
Forward
Transitions
The number of times the port has changed status to
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.
Parameter Description