The installation of the Openvswitch on Ubuntu brings an automatic integration into the boot sequence. When Ubuntu is booted, the Openvswitch is also started. Any bridge or port, which has been defined in previous sessions, is restored. BUT: No L3 interfaces are set up, junk interfaces, which have been defined in previous sessions, are restored. […]
Opendaylight Controller — Simple Version Opendaylight is an Openflow Controller originally forked from David Erickson’s Beacon controller. Many network component vendors are now contributing to this controller. Opendaylight Installation To install Opendaylight (version Hydrogen) on Ubuntu (and other Linux flavors) you need to get the source from http://git.opendaylight.org/gerrit/p/controller.git . You need marven to built the controller, and Java to […]
rcS After the installation of an Ubuntu system you should change the settings in /etc/defaut/rcS . Change the clock settings, if you are using UTC for the hardware clock, enable verbose logging during the boot process and enable the automatic check for fileystems if an error occures.
# assume that the BIOS clock is set to UTC time (recommended)
# be more verbose during the boot process
# automatically repair filesystems with inconsistencies during boot
grub You should also change the settings […]