dropwatch man page

dropwatch — kernel dropped packet monitoring utility

Synopsis

dropwatch [-l <method> | list]

Description

dropwatch dropwatch is an interactive utility for monitoring and recording packets that are dropped by the kernel

Options

-l <method> | list
Select the translation method to use when a drop alert arrives. By default the raw instruction pointer of a drop location is output, but by the use of the -l option, we can assign a translation method so that the instruction pointer can be translated into function names. Currently supported lookup methods are:

kas - use /proc/kallsyms to lookup instruction pointers to function mappings

Interactive Commands

start
Tells the kernel to start reporting dropped packets
stop
Tells the kernel to discontinue reporting dropped packets
exit
Exits the dropmonitor program
help
Displays summary of all commands
set alertlimit <value>
Sets a triggerpoint to stop monitoring for dropped packets after <value> alerts have been received

Info

Mar 2009 Neil Horman