openstack team mailing list archive

[Dan Wendlandt <dan@xxxxxxxxxx>]

On Tue, Oct 23, 2012 at 10:56 PM, livemoon <mwjpiero@xxxxxxxxx> wrote:
> Dan:
> Thank you for your help.
> If the server have three nics, which one will be used as port of "br-int". I
> must know how "br-int" work between two machines, and then I can make the
> physical interface which "br-int" use to one switch

If you are using tunneling, the traffic will exit out the NIC based on
your physical server's routing table and the destination IP of the
tunnel.  For example, if your physical server is tunneling a packet to
a VM on a physical server with IP W.X.Y.Z, the packet will leave
whatever NIC has the route to reach W.X.Y.Z .

Dan




>
> On Wed, Oct 24, 2012 at 11:52 AM, Dan Wendlandt <dan@xxxxxxxxxx> wrote:
>>
>> all you need to do is create a bridge named "br-int", which is what
>> the linux devices representing the vm nics will be plugged into.
>>
>> since you are using tunneling, there is no need to create a br-ethX
>> and add a physical interface to it.
>>
>> dan
>>
>> p.s. btw, your config looks like its using database polling, which is
>> not preferred.  I'd suggest you use the default config, which uses RPC
>> communication between agents and the main quantum-server process
>>
>>
>> On Tue, Oct 23, 2012 at 8:44 PM, livemoon <mwjpiero@xxxxxxxxx> wrote:
>> > I know in one node,vm can work well.
>> > I want to know in multi nodes, do I need to create a br-ethX, and port
>> > the
>> > physical interface to it? how to do that in configuration?
>> >
>> > On Wed, Oct 24, 2012 at 11:36 AM, 刘家军 <iamljj@xxxxxxxxx> wrote:
>> >>
>> >> you just need to create one or more networks and specify which network
>> >> to
>> >> use when booting vm.
>> >>
>> >> 2012/10/24 livemoon <mwjpiero@xxxxxxxxx>
>> >>>
>> >>> Hi, I use quantum as network. A question is if there are multi nodes,
>> >>> how
>> >>> to config to make vms communicate with each other in the same subnet.
>> >>>
>> >>> I use openvswitch as my plugin. And my setting is blow:
>> >>>
>> >>> [DATABASE]
>> >>> sql_connection = mysql://quantum:openstack@172.16.1.1:3306/quantum
>> >>> reconnect_interval = 2
>> >>>
>> >>> [OVS]
>> >>>
>> >>> tenant_network_type = gre
>> >>> tunnel_id_ranges = 1:1000
>> >>> integration_bridge = br-int
>> >>> tunnel_bridge = br-tun
>> >>> local_ip = 172.16.1.2
>> >>>
>> >>> enable_tunneling = True
>> >>>
>> >>>
>> >>> [AGENT]
>> >>> polling_interval = 2
>> >>> root_helper = sudo /usr/bin/quantum-rootwrap
>> >>> /etc/quantum/rootwrap.conf
>> >>>
>> >>> --
>> >>> 非淡薄无以明志，非宁静无以致远
>> >>>
>> >>> _______________________________________________
>> >>> Mailing list: https://launchpad.net/~openstack
>> >>> Post to     : openstack@xxxxxxxxxxxxxxxxxxx
>> >>> Unsubscribe : https://launchpad.net/~openstack
>> >>> More help   : https://help.launchpad.net/ListHelp
>> >>>
>> >>
>> >>
>> >>
>> >> --
>> >> 刘家军@ljjjustin
>> >>
>> >
>> >
>> >
>> > --
>> > 非淡薄无以明志，非宁静无以致远
>> >
>> > _______________________________________________
>> > Mailing list: https://launchpad.net/~openstack
>> > Post to     : openstack@xxxxxxxxxxxxxxxxxxx
>> > Unsubscribe : https://launchpad.net/~openstack
>> > More help   : https://help.launchpad.net/ListHelp
>> >
>>
>>
>>
>> --
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> Dan Wendlandt
>> Nicira, Inc: www.nicira.com
>> twitter: danwendlandt
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>
>
> --
> 非淡薄无以明志，非宁静无以致远



-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Dan Wendlandt
Nicira, Inc: www.nicira.com
twitter: danwendlandt
~~~~~~~~~~~~~~~~~~~~~~~~~~~