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C H A P T E R 1 5
Status Monitoring and Statistics
Port Statistics
The switch provides a facility for viewing port statistic information.
The summary information lists values for the current counter
against each port on each operational module in the system, and it
is refreshed approximately every 2 seconds. Values are displayed to
nine digits of accuracy.
To view port statistics, use the following command:
show ports <portlist> stats
The following port statistic information is collected by the switch:
•
Link Status — The current status of the link. Options are
-
Ready (the port is ready to accept a link)
-
Active (the link is present at this port)
•
Transmitted Packet Count (Tx Pkt Count) — The number of
packets that have been successfully transmitted by the port.
•
Transmitted Byte Count (Tx Byte Count) — The total number
of data bytes successfully transmitted by the port.
•
Received Packet Count (Rx Pkt Count) — The total number of
good packets that have been received by the port.
•
Received Byte Count (RX Byte Count) — The total number of
bytes that were received by the port, including bad or lost frames.
This number includes bytes contained in the Frame Check
Sequence (FCS), but excludes bytes in the preamble.
•
Received Broadcast (RX Bcast) — The total number of frames
received by the port that are addressed to a broadcast address.
•
Received Multicast (RX Mcast) — The total number of frames
received by the port that are addressed to a multicast address.
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