3Com 3CBLSG48 User Manual page 148

Edge Port — Indicates if Edge Port is enabled on the port. If Edge
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Port is enabled for a port, the Port State is automatically placed in
the Forwarding state when the port link is up. Edge Port optimizes
the STP protocol convergence. STP convergence takes 30 seconds and
is not dependent on the number of switches in
the network. However, an edge port that receives a BPDU
immediately loses edge port status and becomes a normal spanning
tree port. The possible field values are:
Enabled — Indicates that Edge Port is enabled on the port
Disabled — Indicates Edge Port is Disabled on the port.
State — Displays the current STP state of a port. If enabled, the port
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state determines what action is taken on traffic. Possible port states
are:
Disabled — Indicates that STP is currently Disabled on the port.
The port forwards traffic while learning MAC addresses.
Blocking — Indicates that the port is currently blocked and cannot
forward traffic or learn MAC addresses. Blocking
is displayed when Classic STP is enabled.
Listening — Indicates that the port is in Listening mode. The port
cannot forward traffic nor can it learn MAC addresses.
Learning — Indicates that the port is in Learning mode. The port
cannot forward traffic, however it can learn new MAC addresses.
Forwarding — Indicates that the port is in Forwarding mode. The
port can forward traffic and learn new MAC addresses.
Discarding — Indicates that the port is in Discarding mode. The
port is listening to BPDUs, and discards any other frames
it receives.
Link Type — Displays the link type of the port. A port that operates
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in full-duplex is assumed to be point-to-point, while a half-duplex port
is considered as a shared port by default. The possible field values are:
Point to point — Indicates that a point-to-point link is established
on the port.
Shared —Indicates that a shared link is established on the port.
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