JANUS TCPLOG

Capture Janus port traffic

The JANUS TCPLOG subcommand lets you capture all input and output streams for a particular Janus port. The captured streams are written to a sequential file.

Syntax

JANUS TCPLOG ddname

Where: ddname is the DDname of the sequential dataset to contain the log.

One suggested use for a file of captured streams is to provide "playback" for customer-written applications that simulate real workloads during testing of new system or application code.

The format of the log file is shown below. All values are in binary format except where indicated.

d.Bytes	d.Description
0-1	Record length
2-3	Unused
4-11	TCP unique connection number
12-15	Record number
16-23	TOD value (in STCK units)
24-27	Remote IP address
28-31	Local IP address
32-33	Remote port number
34-35	Local port number
36-36	Direction (EBCDIC character): R (received) S (sent)
37-37	Unused
38-39	Length of binary data
40-n	Binary data (ASCII characters)

The TCPLOG subcommand is available as of Sirius Mods Version 7.2. .im jtrace

References

See: List of Janus commands