HP General IO Connectivity manual Creating a Filter File, Filter File Syntax

Tracing and Logging Utilities

netfmt

0:00 00 00 01 61 61 61 61 61 61 61 61 61 61 61 61 ...aaaaaaaaaaaa

16:61 61 61 61 -- -- -- -- -- -- -- -- -- -- -- -- aaaa..........

To format the file /tmp/tracex25.TRC0 in “Nice” mode (output is mainly packet headers) with no filtering:

/etc/netfmt -N-f /tmp/tracex25.TRC0 more The output will be:

Tx board:	0	at Wed Sep 28		1994 10:16:19.689181 Data Packet lci 64
Q-bit	:	0	D-bit		:	0	M-bit : 0
P(R)	:	0	P(S)		:	0
User	Data =		20 bytes

To format the file /tmp/tracex25.TRC0 in “terse” (short) mode, with no filtering:

/etc/netfmt -1 -f /tmp/tracex25.TRC0 more

The output will be:

Tx board: 0 at 10:16:19.689181 Data Packet lci 64 PR: 0 PS: 0

Creating a Filter File

You can use a filter file to filter information according to various criteria. This enables you to apply system-level filtering to get information such as a time stamp for a specific subsystem.

You create a filter file with your text editor by entering the filter configuration commands in predetermined fields on the same line. The filter commands are: type, “!” (not), and value.

The values specified in the filter file are compared against the input values. When there is a match, the information is recorded. It is possible to create specific filters for all configured subsystems.

Refer to the man pages for netfmt for a complete explanation of the format file syntax.

Filter File Syntax

Each line (filter) in the system level filter file begins with the keyword FORMATTER FILTER (for system level filters) or SX25L3 (for subsystem level filters, level 3 only). Entries are not case-sensitive, and spaces and tabs are ignored. The syntax is shown below:

FORMATTER FILTER [type][!] [value]

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