Skip to main content
Join the official 2019 Python Developers SurveyStart the survey!

Network control daemon for Open_vSwitch

Project description

Netcontrold optimizes Poll Mode Driver (PMD) threads in the OpenVSwitch for a balanced load in the data plane processing. Netcontrold runs a daemon which periodically monitors various stats in the OpenVSwitch for PMD threads, RXQ of various ports that the PMD handles, analyze and apply appropriate load balance instructions in the virtual switch to distribute data plane load uniformly across PMD threads.

Netcontrold performs below key tasks after its daemon starts:

  • Collect stats from vswitch
  • Check if PMDs need rebalance dry-runs
  • Execute dry-run(s) on PMDs
  • If dry-run yields better load balance, instruct vswitch.


  • Rebalance mode (load balance on PMD threads)
  • Trace mode (call back user script in the event of heavy packet drops)
  • Enable/disable its modes in run time.


usage: ncd_ctl CMD

CMD in one of the below: start stop restart status config show config rebalance <on|off> config trace <on|off> config verbose <on|off> version

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for netcontrold, version 1.0.9
Filename, size File type Python version Upload date Hashes
Filename, size netcontrold-1.0.9-py3-none-any.whl (29.2 kB) File type Wheel Python version py3 Upload date Hashes View hashes
Filename, size netcontrold-1.0.9.tar.gz (22.0 kB) File type Source Python version None Upload date Hashes View hashes

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN SignalFx SignalFx Supporter DigiCert DigiCert EV certificate StatusPage StatusPage Status page