Thank you, guys.
I hope that we have more discussions about this topic at the summit.

Ryota

>-----Original Message-----
>From: Dan Wendlandt [mailto:d...@nicira.com]
>Sent: Thursday, April 05, 2012 9:24 AM
>To: Chris Wright
>Cc: Ryota MIBU; netstack@lists.launchpad.net
>Subject: Re: [Netstack] quantum community projects & folsom summit plans
>
>
>
>On Wed, Apr 4, 2012 at 5:05 PM, Chris Wright <chr...@sous-sol.org> wrote:
>
>
>       * Ryota MIBU (r-m...@cq.jp.nec.com) wrote:
>       > Hi Dan,
>
>       > >     I think there is another sub topic, but I am not sure yet.
>       > >     I agree that a configurable VIF driver is much better.
>       > >     For designing the configuration of vif-plugging, it is required 
> that we discuss the granularity of
>selecting
>       > >VIF Driver.
>       > >     Should The granularity of selecting VIF Driver be per node, VM, 
> or VIF?
>       > >     Currently, VIF Driver would be configured in nova-compute.conf.
>       > >     This means that the granularity is per Hypervisor Node.
>       > >     To be more flexible, we might consider the case where VIF1 of 
> VM1 connects to bridge and VIF2 of
>VM1 maps
>       > >to a physical NIC
>       > >     directly.
>       > >     If so, it may raise another issue; how to determine connection 
> type of VIF.
>       > >That's an interesting use case, and something that we haven't tried 
> to deal with yet.  In your use case,
>who would
>       > >determine how a VIF was mapped?  Would it be a policy described by 
> the service provider?  Would it be
>part of the
>       > >VM flavor?  Adding this kind of flexibility is certainly possible, 
> though you are the first person who
>has expressed
>       > >a need for this type of flexibility.
>       >
>       > It could be mixed.
>       > I think that a cloud user specifies vNIC option like "physical NIC 
> mapping" as a VM flavor,
>       > then a service provider determines a hypervisor node and it's 
> available physical NIC.
>
>
>       Yes, come across similar issue, esp w/ SR-IOV virtual functions instead 
> of
>       physical functions.
>
>
>
>Whoops, sorry Ryota, I missed this part of your email.
>
>I understand the use case.  Being able to invoke different types of 
>vif-plugging based on flavor would be one way
>to think about it.  Another way would be to think about it would be a single 
>vif-plugging mechanism that can configure
>the vif in two ways based on the flavor.
>
>dan
>
>
>
>
>       > It is not suitable that the cloud user specifies physical NIC itself.
>       > But this though is not clear enough to having a session on the summit,
>       > I hope that we discuss this issue on vif-plugging session or 
> somewhere in the summit.
>
>
>
>
>
>--
>~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Dan Wendlandt
>Nicira, Inc: www.nicira.com
>
>twitter: danwendlandt
>~~~~~~~~~~~~~~~~~~~~~~~~~~~
>



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