Portperfshow - Brocade Communications Systems Brocade 8/12c Command Reference Manual

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. To run this command one time only, specify an interval of zero.
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,""No_Light,"
or "No_SigDet" 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]
-t time_interval
-tx
-rx
-tx -rx
Fabric OS Command Reference
53-1001764-01
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.
Specifies the interval, in seconds, between each sample. The default interval is
one second. If no interval is specified, the default is used. To run this command
one time only, specify an interval of zero.
Displays the transmitter throughput.
Displays the receiver throughput.
Displays the transmitter and receiver throughput.
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portPerfShow
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