Dell POWEREDGE M1000E - Manual (Page 771)

Fabric OS Command Reference 739
53-1001764-02
portPerfShow
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portPerfShow
Displays port throughput performance.
Synopsis portperfshow
portperfshow [[slot/]port1[-[slot/]port2]] [-tx -rx | -tx | -rx] [-t interval]]
portperfshow --help
Description Use this command to display throughput information for all ports on a switch or chassis or to
display the information for a specified port or port range. Output includes the number of bytes
received and transmitted per interval. Throughput values are displayed as either bytes, kilobytes
(k), megabytes (m), or gigabytes (g). Values are rounded down.
The data is displayed one column per port plus one column that displays the total for these ports.
Results display every second or over a specified interval. Press Enter, Ctrl-c, or Ctrl-d to terminate
the command.
When executed with the command line arguments -tx, -rx, or -tx -rx, this command displays the
transmitter throughput, the receiver throughput, or both. For ports with status of "No_Module" or
"No_Light" throughput is displayed as 0.
Notes The execution of this command is subject to Virtual Fabric or Admin Domain restrictions that may
be in place. Refer to chapter 1, "Using Fabric OS Commands" and Appendix A, "Command
Availability" for details.
When FastWrite or Tape Pipelining is enabled, the portPerfShow VE link output is different. The
acceleration entity (FastWrite or Tape Piplelining) responds by sending XFER_RDY and status well
ahead of the actual device's response to the host. The host sends data which is stored near the
device and is delivered to the device only when the device is ready. Consequently, the data may be
stored near the target for some brief period of time. In this case, the portPerfShow output on the VE
link may not match the output on the device port.
Operands This command has the following optional operands:
[slot\]port1[-[slot\]port2]
Displays throughput information for a single port or for a range of ports,
relative to the slot number on bladed systems. Port numbers in a range must
be separated by a dash (-), for example, 3-5, or 2/0-2/15. Port ranges cannot
span slots. Use switchShow to display a listing of valid ports. Port operands
are optional; if omitted, information for all ports is displayed.
-t time_interval Specifies the interval, in seconds, between each sample. The default interval
is one second. If no interval is specified, the default is used.
-tx Displays the transmitter throughput.
-rx Displays the receiver throughput.
-tx -rx Displays the transmitter and receiver throughput.