Re: [Xen-users] [XCP] XCP network and VLAN by Open vSwitch

[Todd Deshane <todd.deshane@xxxxxxx>]

On Tue, Jul 5, 2011 at 8:20 AM, Wei-Chih Chen <wcchen.tw@xxxxxxxxx> wrote:
> Dear George and Everyone,
>
> I've checked that script.
> It surprises me that it uses ovs-vsctl.
> I thought XAPI controls Linux bridge directly instead of using newly
> integrated ovs- commands.
> However, it seems that some of xe commands (XAPI) also use ovs- commands.
>

When xe uses the ovs commands it is often working with the bridge as
directly as it needs to (i.e. there are ovs commands that accomplish
the desired result).

> Therefore, some contents mentioned in this discussion list before has to be
> modified?
> 1. Original Linux network: XenCenter (GUI tool)-> xe command-> XAPI -> Linux
> Bridge or Open vSwitch (depeding on what is configured ? )
> 2. (from Todd) some vSwitch Controller (commercial from companies like
> Citrix or open source using NOX)-> OpenFlow protocol-> Open vSwitch switches
>
> On Tue, Jul 5, 2011 at 1:18 AM, George Shuklin <george.shuklin@xxxxxxxxx>
> wrote:
>>
>> I could not reply to all question but look to
>> the /etc/xensource/scripts/vif - it contain shell script executed by
>> xapi during vif-plug/unplug operations.
>>
>> Ð ÐÐÐ, 04/07/2011 Ð 19:05 +0800, Wei-Chih Chen ÐÐÑÐÑ:
>>
>> > Sorry that I still have many questions about network of XCP 1.0 .
>> >
>> > Can Linux Bridge and Open vSwitch coexist and work at the same time?
>> > The command "xe-switch-network-backend openvswitch" enables vSwitch.
>> > This means "just turn on vSwitch" or "turn on vSwitch and turn off
>> > Linux Bridge"?
>> >
>> > "A Ânetwork is a virtual Ethernet switch on a XenServer host."
>> > Does the virtual Ethernet switch the same as the virtual bridge
>> > created by "ovs-vsctl add-br"?
>
> It seems they are the same?


> Then the remaining managements are done through XAPI or OpenFlow (if XAPI
> does not support this configuration).
> Is the method correct?

I think this seems OK. Does the previous response that I sent answer
this question better?

Thanks,
Todd

-- 
Todd Deshane
http://www.linkedin.com/in/deshantm
http://www.xen.org/products/cloudxen.html
http://runningxen.com/

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