NEC N8406-022A - Manual (Page 47)

Command Line Interface 47
Port Statistics Menu
Command: /stats/port <port number>
[Port Statistics Menu]
brg - Show bridging ("dot1") stats
ether - Show Ethernet ("dot3") stats
if - Show interface ("if") stats
ip - Show Internet Protocol ("IP") stats
link - Show link stats
clear - Clear all port stats
This menu displays traffic statistics on a port-by-port basis.
The following table describes the Port Statistics Menu options:
Table 35 Port Statistics Menu options
Command Usage
brg Displays bridging (“dot1”) statistics for the port.
ether Displays Ethernet (“dot3”) statistics for the port.
if Displays interface statistics for the port.
ip Displays Internet Protocol statistics for the port.
link Displays link statistics for the port.
clear Clears all the statistics on the port.
Bridging statistics
Command: /stats/port <port number>/brg
Bridging statistics for port 1:
dot1PortInFrames: 63242584
dot1PortOutFrames: 63277826
dot1PortInDiscards: 0
dot1TpLearnedEntryDiscards: 0
dot1StpPortForwardTransitions: 0
The following table describes the bridging statistics for a selected port:
Table 36 Bridging statistics for port
Statistics Description
dot1PortInFrames The number of frames that have been received by this port from its
segment.
A frame received on the interface corresponding to this port is counted by
this object, if and only if, it is for a protocol being processed by the local
bridging function, including bridge management frames.
dot1PortOutFrames The number of frames that have been transmitted by this port to its
segment.
A frame transmitted on the interface corresponding to this port is counted
by this object, if and only if, it is for a protocol being processed by the local
bridging function, including bridge management frames.
dot1PortInDiscards Count of valid frames received which were discarded (that is, filtered) by
the forwarding process.
dot1TpLearnedEntryDiscards The total number of Forwarding Database entries, which have been or
would have been learned, but have been discarded due to a lack of space
to store them in the Forwarding Database.
If this counter is increasing, it indicates that the Forwarding Database is
regularly becoming full (a condition which has adverse performance effects
on the sub network).
If this counter has a significant value but is not presently increasing, it
indicates that the problem has been occurring but is not persistent.
dot1StpPortForwardTransition
s
The number of times this port has transitioned from the Learning state to
the Forwarding state.