This is an standalone .py file that can be uploaded to remote
servers and used to log network packets over network interfaces.
It will discover new interfaces automatically, in the root or
inside network namespaces.
Interfaces and namespaces are filtered via regular expressions.
usage: netprobe [-h] [-v] [--netns-re NETNS_REGEX]
[--netdev-re NETDEV_REGEX]
[--tcpdump-filter TCPDUMP_FILTER]
[--check-interval CHECK_INTERVAL]
This tool will track system network devices as they appear in a host,
and start tcpdump processes for each of them, while the output of all
the tcpdumps goes in a single openstack-like log.
optional arguments:
-h, --help show this help message and exit
-v, --version show program's version number and exit
--netns-re NETNS_REGEX, -n NETNS_REGEX
--netdev-re NETDEV_REGEX, -d NETDEV_REGEX
--tcpdump-filter TCPDUMP_FILTER, -t TCPDUMP_FILTER
--check-interval CHECK_INTERVAL, -i CHECK_INTERVAL
The interval between interface checks
The example ansible script will command two hosts, while
starting several extra logging artifacts to capture tcpdumps,
pings, fdb tables and openflow rules.
Then, at the end, will download logs from servers and generate
several merged logs which can be found in
contrib/debug-live-migration/logs/mergedlogs*.log
Logs and output are left as an example.
Miguel Angel Ajo