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Port Statistics
Summit 200 Series Switch Installation and User Guide 173
Port Statistics
ExtremeWare 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).
— Chassis (the link is connected to a Summit Virtual Chassis).
• 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.
NOTE
On stacked configurations, port statistics are cached on each slot and updated to the master switch on
an “as needed” basis.
Port Errors
The switch keeps track of errors for each port.
To view port transmit errors, use the following command:
show ports <portlist> txerrors
The following port transmit error information is collected by the system:
•Port Number
• 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).