A packet capturing tool similar to TShark and TcpDump for the HP-UX version of Unix. Wireshark can read capture files created by nettl.
The -tn all (short for -traceon all) starts the capture of network packets, -e all for all interfaces, -f test save packets in a file named test.TRC000 where 000 is a sequence number. The -tf parameter (short for -traceoff) stops the capture:
nettl -tn all -e all -f test # wait a while nettl -tf -e all