Perform simple filter based analysis on a trace
tracertstats [ -f | --filter bpf ] [ -i | --interval interval ] [ -c | --count count ] [ -o | --output-format csv,txt,png,html ] [ -m | --merge-inputs ] inputuri...
tracertstats -H|--libtrace-help
tracertstats takes a list of bpf expressions and outputs the number of packets and bytes that match that expression every interval seconds, or count packets.
-f bpf-filter
-\^-filter bpf-filter
Add another "bpf filter"
-i interval
-\^-interval interval
Output results every interval seconds.
-c count
-\^-count count
Output results every count packets.
-m
-\^-merge-inputs
Treats all inputs as a single input, resulting a single unified output rather than an output for each input. Works best with traces that are consecutive to create a single CSV, for instance.
-o format
-\^-output-format format
Selects the output format.
txt
Human readable text. This is the default output format which provides output easily understood by a human. This format has the disadvantage that it takes up quite a bit of horizontal space.
csv
Comma Seperated Values. This is suitable for further analysis in a spreadsheet, or other program.
png
PNG Graphic. Produces a fairly incomprehensible png graph. This relies on gdc being available at compile time.
html
This produces output suitable for display to a human in a webbrowser.
tracertstats -\^-filter 'host sundown' \ -\^-filter 'port http' \ -\^-filter 'port ftp or ftp-data' \ -\^-filter 'port smtp' \ -\^-filter 'tcp[tcpflags] & tcp-syn!=0' \ -\^-filter 'not ip' \ -\^-filter 'ether[0] & 1 == 1' \ -\^-filter 'icmp[icmptype] == icmp-unreach' \ -\^-output-format html erf:/traces/trace1.gz \ erf:/traces/trace2.gz
More details about tracertstats (and libtrace) can be found at http://www.wand.net.nz/trac/libtrace/wiki/UserDocumentation
Perry Lorier <[email protected]>