Feature
RO
OpenVIM currently uses pre-provisioned Linux bridges to create the overlay networks used to interconnect the VMs. Those Linux bridges are built on a host interface and are associated with a VLAN tag, which is used to transport frames between VMs located in different hosts across a switching infrastructure.
Linux bridges, while working well in practice, have limitations (e.g. VLAN as the only mechanism for achieving isolation). It also lacks some advanced capabilities (L3 filtering, IP tunneling, support of Openflow rules, etc.).
Open vSwitch (OVS) (http://www.openvswitch.org/) provides those advanced capabilities and would be better aligned with future OSM needs and use cases.
This feature proposes the support of OVS in openvim as an alternative to Linux Bridges. Openvim installer and configuration files should provide options to use either Linux Bridges or OVS. Scripts for automatic configuration of hosts should also provide that option.
N/A