HP StorageWorks 2/16V HP StorageWorks Fabric OS V3.1.3A Release Notes (AA-RUQY - Page 23

might express this value in, units other than milliseconds.

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CLI Command Updates and Changes The hop count includes all hops in the direct path from source to destination, and also all the hops in the reverse path, if reverse-path tracing is requested. The default value for the maximum hop count is 25. Basic statistics Basic statistics report variables that give an indication of ISL congestion along the path. They include the following: B/s Txcrdz Bytes per second. The length of time, in milliseconds, that the port has been prevented from transmitting frames due to lack of buffer-to-buffer credit. This is an indication of downstream congestion. Note that other commands-for example, portStatsShow-might express this value in units other than milliseconds. Extended statistics Extended statistics report variables of general interest. They include the following: F/s Words Frames Errors Frames per second. Total number of 4-byte Fibre Channel words. Total number of frames. Total number of errors that might cause a frame to be received incorrectly. This includes CRC errors, bad-EOF errors, frame-truncated errors, frame-too-short errors, and encoding errors inside a frame. Reverse path In general, the path from port A on switch X to port B on switch Y might be different from the path from port B to port A. The difference could be in the links traversed between the same sequence of switches, or the reverse path might even involve different switches. The trace reverse path option allows the user to determine both routing and statistics information for the reverse path, in addition to those for the direct path. Fabric OS 3.1.3a Release Notes 23

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CLI Command Updates and Changes
23
Fabric OS 3.1.3a Release Notes
The hop count includes all hops in the direct path from source to destination, and
also all the hops in the reverse path, if reverse-path tracing is requested. The
default value for the maximum hop count is 25.
Basic statistics
Basic statistics report variables that give an indication of ISL congestion along the
path. They include the following:
Extended statistics
Extended statistics report variables of general interest. They include the following:
Reverse path
In general, the path from port A on switch X to port B on switch Y might be
different from the path from port B to port A. The difference could be in the links
traversed between the same sequence of switches, or the reverse path might even
involve different switches. The trace reverse path option allows the user to
determine both routing and statistics information for the reverse path, in addition
to those for the direct path.
B/s
Bytes per second.
Txcrdz
The length of time, in milliseconds, that the port
has been prevented from transmitting frames due
to lack of buffer-to-buffer credit. This is an
indication of downstream congestion. Note that
other commands—for example,
portStatsShow
—
might express this value in
units other than milliseconds.
F/s
Frames per second.
Words
Total number of 4-byte Fibre Channel words.
Frames
Total number of frames.
Errors
Total number of errors that might cause a frame to
be received incorrectly. This includes CRC errors,
bad-EOF errors, frame-truncated errors,
frame-too-short errors, and encoding errors inside
a frame.