Dell POWEREDGE M1000E - Manual (Page 614)

586 Fabric OS Command Reference
53-1002746-01
pathInfo
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Extended statistics
Extended statistics report variables of general interest. They include the following:
F/s
The number of frames received or transmitted per second. This value is reported
for multiple time periods, displayed in parentheses.
Words
The total number of 4-byte Fibre Channel words.
Frames
The total number of frames.
Errors
The total number of errors that may have caused a frame not to be received
correctly. This includes cyclic redundancy check (CRC) errors, bad end-of-frame
(EOF) errors, frame truncated errors, frame-too-short errors, and encoding errors
inside a frame.
Reverse path
The path from port A on switch X to port B on switch Y may be different from the
path from port B to port depending on the links traversed between a given
sequence of switches, or the reverse path may involve different switches. The -r
option displays routing and statistics information for the reverse path in addition to
those for the direct path.
Source route
The source route option allows you to specify a sequence of switches or ports,
which the pathInfo frame has to traverse to reach the destination. Therefore, the
path specified may be different from the one used by actual traffic.
The source route is expressed as a sequence of switches, a sequence of output
ports, or a combination of both. The next hop in the source route is described by
either the output port to be used to reach the next hop, or the domain ID of the
next hop.
The source route can specify a full route from source to destination or a partial
route. In a partial route the remaining hops are chosen as the path from the input
port on the first hop not listed in the source route to the destination. The maximum
hop count is enforced in both cases.
If the source route does not specify all the switches along a section of the path,
you can specify a strict or a loose path. A strict source route requires that only the
specified switches are reported in the path description. If two switches are
specified back-to-back in the source route descriptor but are not directly
connected, the switches in-between are ignored. In a loose source route, the
switches in-between are reported. The concepts of strict and loose route apply
only to the portions of the path described by domains, not to the part described by
output ports.