Brocade Fabric OS FCIP Administrator's Guide v7.1.0 (53-1002748-01, March 2013)

Fabric OS FCIP Administrator’s Guide 67
53-1002748-01
WAN performance analysis tools
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16 0 ge0 Up ---4--s 1h21m34s 0.00 0.00 2 500/500 0
16 1 ge1 Up ---4--s 1h21m43s 0.00 0.00 2 500/500 0
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Flags: tunnel: c=compression m=moderate compression a=aggressive compression
A=Auto compression f=fastwrite t=Tapepipelining F=FICON
T=TPerf i=IPSec l=IPSec Legacy
Flags: circuit: s=sack v=VLAN Tagged x=crossport 4=IPv4 6=IPv6 T=Test(CPerf)
L=Listener I=Initiator
The previous display shows VE_Port 16 as up, but a switchshow command for that same VE _Port
will show the following:
switch:admin> switchshow | grep 16
16 16 631000 -- -- Offline VE
The Tperf command determines the path characteristics to a remote host or tunnel destination.
The syntax is as follows:
portcmd - -tperf slot/VE_port number -sink -source -high | -medium | -low -time duration]
-unidirectional -random -pattern pattern -size pdu_size -interval interval
For full details on syntax and using this command, refer to the Fabric OS Command Reference
Manual.
The following examples create a Tperf data sink and a Tperf data source on VE_Port 16.
switch:admin> portcmd --tperf 16 -sink -interval 15
switch:admin> portcmd --tperf 16 -source -interval 15 -high -medium -low
For details on this command, syntax, and output examples, refer to the Fabric OS Command
Reference Manual.
Tperf generates statistics every 30 seconds by default unless you specify a different value for
-interval. Table 9 briefly describes the output.
TABLE 9 Tperf 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.