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Displaying Bridge Port Information 11-3
Table 11-1 describes the type of information provided for the bridge port.
Table 11-1 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 is 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
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, the more
unstable is 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 count: 1 = FDDI
and 2 –17 = 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
rxDiscards Total number of received frames discarded (summary report only)
rxErrorDiscs Number of frames discarded by this port because of internal
bridge system errors (such as hardware and software address
table discrepancies)
rxFloodUcasts Number of unicast frames received on this port that were flooded
to one or more ports
rxForwardMcasts Number of multicast frames received on this bridge port
rxForwardUcasts Number of unicast frames received on this bridge port
(continued)