3Com LANPLEX 6000 User Manual page 177

Table 13-1 describes the type of information provided for the bridge port.
Table 13-1 Bridge Port Attributes
Parameter Description
designatedBridge Identification of the designated bridge of the LAN to which the
port is attached
designatedCost Cost through this port to get to the root bridge. The designated
cost of the root port would be the same as the cost received in
incoming BPDUs from the designated bridge for that LAN.
designatedPort Identification of the designated port on the designated bridge
designatedRoot Identification of the bridge designated as root
filtered Total number of frames discarded by this port due to user-
defined packet filters
forwarded Total number of frames forwarded from this port to all other ports
of this bridge. The total forwarded count is NOT equal to the
receive count minus the discard count, as a single received
multicast/broadcast frame can be forwarded to multiple bridge
ports. Also, frames that are flooded because of unknown
destination addresses account for multiple forwarding. The total
forwarding count is the instantaneous sum of the "forwarded to
counts" to all other ports of the bridge.
fwdTransitions Number of times the port has entered forwarding state. This value
is useful for checking the stability of a bridged topology. The
more transitions in and out of the forwarding state means the
more unstable the topology.
pathCost Cost to be added to the total path cost when this port is the root
port
port Either Ethernet or FDDI (maximum possible count for EFSM: 1 =
FDDI and 2 – 16 = Ethernet)
portId Identification of the port, which includes the port priority and the
port number (for example: 8002)
priority First factor to determine if a port is to be the designated port
when more that one bridge port is attached to the same LAN. If
all ports in a bridge have the same priority, then the port number
is used as the determining factor.
rxAllFilters Number of frames discarded because of a user-defined packet
filter on the receive all path of this bridge port
rxBlockedDiscs Number of frames discarded by this port because the receiving
bridge port was not in the forwarding state
(continued)
Displaying Bridge Port Information 13-3