Sun Microsystems 3.2 manual nws822# snoop -dhme0 port rdc

In the first example, the command is issued from the primary host nws822 to the secondary host nws350. The network interface is hme0 and the port used by the rdc service is reported.

[nws822]# snoop -d hme0 port rdc
Using device /dev/hme (promiscuous mode)
nws822 -> nws350	RPC C XID=3565514130 PROG=100143 (?) VERS=4 PROC=8
nws350 -> nws822 RPC R (#1) XID=3565514130 Success
nws822 -> nws350	TCP D=121 S=1018	Ack=1980057565 Seq=2524537885
Len=0 Win=33304 Options=<nop,nop,tstamp		1057486 843038>
nws822 -> nws350	RPC C XID=3565514131 PROG=100143 (?) VERS=4 PROC=8
nws350 -> nws822 RPC R (#4) XID=3565514131 Success
nws822 -> nws350	TCP D=121 S=1018	Ack=1980057597 Seq=2524538025
Len=0 Win=33304 Options=<nop,nop,tstamp		1057586 843138>
nws822 -> nws350	RPC C XID=3565514133 PROG=100143 (?) VERS=4 PROC=8
nws350 -> nws822 RPC R (#7) XID=3565514133 Success
nws822 -> nws350	TCP D=121 S=1018	Ack=1980057629 Seq=2524538165
Len=0 Win=33304 Options=<nop,nop,tstamp		1057686 843238>
nws822 -> nws350	RPC C XID=3565514134	PROG=100143 (?) VERS=4 PROC=8

In the second example, the link is ATM so the atmsnoop utility is appropriate.

#/etc/opt/SUNWconn/atm/bin/atmsnoop -d ba0 port rdc device ba0

Using device /dev/ba (promiscuous mode) TRANSMIT : VC=32

TCP D=121 S=1011 Syn Seq=2333980324 Len=0 Win=36560

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RECEIVE : VC=32

TCP D=1011 S=121 Syn Ack=2333980325 Seq=2878301021 Len=0 Win=36512

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TRANSMIT : VC=32

TCP D=121 S=1011 Ack=2878301022 Seq=2333980325 Len=0 Win=41076

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TRANSMIT : VC=32

RPC C XID=1930565346 PROG=100143 (?) VERS=4 PROC=11

_____________________________________________________________________________

RECEIVE : VC=32

TCP D=1011 S=121 Ack=2333980449 Seq=2878301022 Len=0 Win=36450

_____________________________________________________________________________

RECEIVE : VC=32

RPC R (#4) XID=1930565346 Success

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TRANSMIT : VC=32

TCP D=121 S=1011 Ack=2878301054 Seq=2333980449 Len=0 Win=41076

12 Sun StorEdge Availability Suite 3.2 Software Troubleshooting Guide • December 2003