Fabric OS FCIP Administrators Guide v6.4.0 (53-1001766-01, November 2010)

74 Fabric OS FCIP Administrator’s Guide
53-1001766-01
WAN performance analysis tools
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Tunnel ID: 16
High Priority Medium Priority Low Priority
bytes tx 4288640 3669640 2828040
bytes rx 1088456832 931354632 717756552
PDUs tx 107216 91741 70701
PDUs rx 107216 91741 70701
bad CRC headers rx 0 0 0
bad CRC payloads rx 0 0 0
out of seq PDUs rx 0 0 0
flow control count 0 0 0
packet loss (%) 0.2159 0.0957 0.0602
bytes/second 40339839 35410409 27053224
last rtt N/A N/A N/A
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switch:admin> portcmd --tperf 16 -source -interval 15
TPerf has been configured successfully for 16
TPerf is generating traffic on 16 priority: high
TPerf is generating traffic on 16 priority: medium
TPerf is generating traffic on 16 priority: low
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Tunnel ID: 16
High Priority Medium Priority Low Priority
bytes tx 1306369512 2679924960 2757090312
bytes rx 5147240 10559200 10840800
PDUs tx 128681 263980 271581
PDUs rx 128681 263980 271020
bad CRC headers rx 0 0 0
bad CRC payloads rx 0 0 0
out of seq PDUs rx 0 0 0
flow control count 7242 7569 15669
packet loss (%) 0.4875 0.5708 0.4332
bytes/second 42216070 38961016 35327895
last rtt 0 32 291
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Tperf generates statistics every 30 seconds by default unless you specify a different value for
-interval. The following table briefly describes the output:.
Item Description
Tunnel ID Numeric identifier for the TPerf tunnel.
Traffic Priority High, Medium, or Low.
bytes tx Number of bytes transmitted.
bytes rx Number of bytes received.
PDUs tx Number of protocol data units transmitted.
PDUs rx Number of protocol data units received.
bad CRC headers rx Number of bad CRC headers received.
bad CRC payloads rx Number of bad CRC payloads received.
out of seq PDUs rx Number of out-of-sequence PDUs received.
flow control count Flow control count.
packet loss (%) The percentage of packet loss.
bytes/second The number of bytes transmitted per second.
last rtt The time it took for the last round trip between the Tperf source and
the Tperf sink in milliseconds. This is calculated only on the source
side report. It is reported as N/A on the sink side report.