Hi, On Tue, Apr 28, 2015 at 3:00 PM, Shanmugam Sundaram <[email protected]> wrote: > On Tue, Apr 28, 2015 at 11:49 AM, Han Zhou <[email protected]> wrote: >> >> Hi Shan, >> >> Thanks, but why can't we just add an internal port to OVS bridge and >> put into namespace? > > > Internal port is single port that is connects to hosts IP stack. > veth pair, come with pair of ports, like a pipe, one end in one namespace > (your host) and another end in docker containers namespace. > > So, packets send at one end is received at another end . >
Internal port is widely used in namespaces, e.g. usecase of openstack neutron dhcp node. For my understanding, veth pair is required only when using linux bridge. With OVS, a pair of veth devices can be replaced by a single internal port, with better performance. So I am curious what's the limitation for internal ports to be working with docker. >> >> And what's the native support mentioned in INSTALL.docker.md? > > > Docker uses linux bridges natively i.e., when you launch a container, it > creates its own veth pair, and sets up IP etc. It also removes the veth > pair, etc when a docker container is deleted. > > Docker does not have a native support for Open vSwitch Bridges. i.e., you > have to manually add Docker in OVS Bridge and remove the veth pair, when the > docker is deleted. > > AFAIK, Native integration of Docker with Open vSwitch, is on the road-map. > My question is, what's the key changes required for the "Native" support. Regards, Han >> >> >> Best regards, >> Han >> >> On Tue, Apr 28, 2015 at 2:13 PM, Shanmugam Sundaram >> <[email protected]> wrote: >> > Hi Han, >> > >> > Dockers uses NameSpaces for isolation, to connect between network >> > namespaces, we have to go with veth pairs. >> > >> > regards, >> > Shan >> > >> > On Tue, Apr 28, 2015 at 11:35 AM, Han Zhou <[email protected]> wrote: >> >> >> >> Hello everyone, >> >> >> >> I have a question about the ovs-docker utility. Why can't internal >> >> port work for docker case? For native support, does it mean we need a >> >> new port type? >> >> >> >> Best regards, >> >> Han >> >> _______________________________________________ >> >> discuss mailing list >> >> [email protected] >> >> http://openvswitch.org/mailman/listinfo/discuss >> > >> > >> > >> > >> > -- >> > regards, >> > Shan > > > > > -- > regards, > Shan _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss
