SMC Networks TigerSwitch SMC6948L2, Руководство по управлению

Страница: 105 / 166

W
EB
-B
ASED
M
ANAGEMENT
3-23
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 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