3Com 4007 Command Reference Manual page 136

136 C 7: B
HAPTER RIDGE
P P
ORT ARAMETERS
Field
SRHopLimit
(Multilayer Switching
Modules only)
state
stp
txAllFilters
(Multilayer Switching
Modules only)
txBlockedDiscs
(Multilayer Switching
Modules only)
Description
(Not available at this release)
Current STP operating state of the port:
Blocking — The bridge continues to run STP on the
port, but the bridge does not receive packets from the
port, learn locations of station addresses from it, or
forward packets onto it.
Listening — The bridge continues to run STP and
to transmit configuration messages on the port, but it
discards packets that are received on the port and does
not transmit packets that are forwarded to the port.
Learning — Similar to listening, but the bridge
receives packets on the port to learn the location of
some of the stations that are located on the port.
Forwarding — The bridge receives packets on the
port and forwards or does not forward them,
depending on address comparisons with the bridge's
source address list. Provided that the link state is up,
this state field indicates forwarding even if STP is
disabled for the bridge.
Disabled — Management has disabled the port or
the link state is down.
Configurable status of STP on a port. Provided that
bride-wide STP is enabled, the port STP configuration
states function as follows:
enabled — STP sets the operating state of the port
(blocking, listening, etc.) according to network
topology characteristics. This is the default
configuration for all ports.
disabled — STP is disabled and the port is disabled.
The port does not participate in STP decisions, frame
reception, or frame transmission.
removed — STP is disabled on the port but the port
can still receive or transmit frames if its link state is up.
If bridge-wide STP is disabled, this port STP setting is
meaningless. To configure STP on a port, see "bridge port
stpState" in this chapter.
Number of frames that the bridge port discarded because
of a user-defined packet filter on its "transmit all" path.
Number of frames that this bridge port discarded because
the transmitting bridge port was not in the forwarding
state.