Hi Dan
J My T idea is *slightly* different from the port mirroring idea. We might want to have the semantics in the wire (not the port). So when you unplug the wire and replug it elsewhere, you don't have to worry about mirroring the new port. Similarly you want a bump in the wire use case - of course you can model it as a vm-x----bumpVM-----vm-y but would it make sense to just define the wire and have bumpVM part of the wire. I guess it's a port vs wire semantics question. Hence I started the T discussions. Regards debo From: Dan Wendlandt [mailto:d...@nicira.com] Sent: Tuesday, May 24, 2011 8:57 AM To: Debo Dutta (dedutta) Cc: Kyle Mestery (kmestery); openstack@lists.launchpad.net Subject: Re: [Openstack] [NetStack] Quantum Service API extension proposal Hi Debo, That makes sense as a use case. One way to model that would be as a "port mirror" ( http://en.wikipedia.org/wiki/Port_mirroring ). Port mirroring is sometimes referred to as SPAN thanks to a large networking vendor ;) In your example, if VM A is connected on port XYZ, a quantum plugin might expose a capability to "mirror" the traffic from that port to either another port on the network (local port mirroring) or to a remote IP address using encapsulation (remote port mirroring). This would seem to fit cleanly into our existing model. Dan On Tue, May 24, 2011 at 8:17 AM, Debo Dutta (dedutta) <dedu...@cisco.com> wrote: Hi I think I was unclear. What I meant were having network wire constructs like a T where there are actually 3 end points and one of the end points of the T could be in sniff mode or in a bump-in-the-wire mode. I am not sure how the current API would support these semantics. Use case: imagine vm A talks to B and one wants to monitor the content by sniffing and the monitoring agent is in vm C. This is not a uncommon use case. Regards Debo -----Original Message----- From: Kyle Mestery (kmestery) Sent: Monday, May 23, 2011 4:54 PM To: Debo Dutta (dedutta) Cc: Troy Toman; openstack@lists.launchpad.net Subject: Re: [Openstack] [NetStack] Quantum Service API extension proposal Debo: A tap is nothing different than a VM vnics from a switch perspective, it still contains a portion owned by Nova (the tap itself) and it connects to a port, which is owned by Quantum. So in essence, the tap still has both a "vif" and a "port" in this terminology. Thanks, Kyle On May 23, 2011, at 4:10 PM, Debo Dutta (dedutta) wrote: > Hi Troy > > What about a tap? Its also like a port ....Should that be in quantum? > > Regards > Debo > > From: Troy Toman [mailto:troy.to...@rackspace.com] > Sent: Monday, May 23, 2011 2:10 PM > To: Debo Dutta (dedutta) > Cc: Alex Neefus; Ying Liu (yinliu2); <openstack@lists.launchpad.net> > Subject: Re: [Openstack] [NetStack] Quantum Service API extension proposal > > I think the idea was slightly different. We were equating a vif to NIC in a physical server. A port was equated to a switch port on a physical switch. Doesn't necessarily mean they have to be different. But, there was a reason we used different terminology. > > In particular, we felt the vif was something that would continue to be in the server's domain and managed within Nova. A port was a construct that is owned and managed by the network service (Quantum). > > Troy > > On May 23, 2011, at 3:56 PM, Debo Dutta (dedutta) wrote: > > > Quick question: it seems we are calling one end of the virtual wire a port and the other a vif. Is there a reason to do that? Can we just call say that that a wire connects 2 ports? > > Also another interesting network scenario is when there is a wire connecting 2 ports and you have a tap (for all sorts of scenarios). I think the semantics of the tap might be quite basic. > > Regards > debo > > From: openstack-bounces+dedutta=cisco....@lists.launchpad.net [mailto:openstack-bounces+dedutta <mailto:openstack-bounces%2Bdedutta> =cisco....@lists.launchpad.net] On Behalf Of Alex Neefus > Sent: Monday, May 23, 2011 1:05 PM > To: Ying Liu (yinliu2); openstack@lists.launchpad.net > Subject: Re: [Openstack] [NetStack] Quantum Service API extension proposal > > Hi All - > > I wanted to lend support to this proposal, however I don't think we should be so quick to say this whole thing is an extension. > > We benefit a lot from having a standard capabilities mechanism as part of our core Quantum API. I like Ying's key value method as well. I think it's logical, clean and scalable. I propose that basic read access of "cap" off of our major objects: network, port, interface be included in our first release. > > So in summary I would like to encourage us to add: > GET /networks/{net_id}/conf > GET /networks/{net_id}/ports/{port_id}/conf/ > GET {entity}/VIF/conf/ > > Each of these would return a list of keys. > > Additionally Quantum base should support > GET /networks/{net_id}/conf/{key} > GET /networks/{net_id}/ports/{port_id}/conf/{key} > GET {entity}/VIF/conf/{key} > > Where {key} is the name of either a standard capability or an extention capability. We can define an error code now to designate a capability not supported by the plugin. (i.e. 472 - CapNotSupported) > > Finally we don't need to standardize on every capability that might be supported if we provide this simple mechanism. Specific capabilities Key,Value sets can be added later but or included as vendor specific extensions. > > I'm happy to add this to the wiki if there is consensus. Rick/Dan - Maybe this should be a topic for Tuesdays meeting. > > Alex > > --- > Alex Neefus > Senior System Engineer | Mellanox Technologies > (o) 617.337.3116 | (m) 201.208.5771 | (f) 617.337.3019 > > > > > > From: openstack-bounces+alex=mellanox....@lists.launchpad.net [mailto:openstack-bounces+alex <mailto:openstack-bounces%2Balex> =mellanox....@lists.launchpad.net] On Behalf Of Ying Liu (yinliu2) > Sent: Saturday, May 21, 2011 1:10 PM > To: openstack@lists.launchpad.net > Subject: [Openstack] [NetStack] Quantum Service API extension proposal > > Hi all, > > We just posted a proposal for OpenStack Quantum Service API extension on community wiki page athttp://wiki.openstack.org/QuantumAPIExtensions?action=AttachFile&do=vi ew&target=quantum_api_extension.pdf <http://wiki.openstack.org/QuantumAPIExtensions?action=AttachFile&do=vi% 0d%0aew&target=quantum_api_extension.pdf> > or > http://wiki.openstack.org/QuantumAPIExtensions?action=AttachFile&do=view &target=quantum_api_extension.docx <http://wiki.openstack.org/QuantumAPIExtensions?action=AttachFile&do=vie w%0d%0a&target=quantum_api_extension.docx> > > Please review and let us know your comments/suggestions. An etherpad page is created for API extension discussionhttp://etherpad.openstack.org/uWXwqQNU4s > > Best, > Ying > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : openstack@lists.launchpad.net > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > > > Confidentiality Notice: This e-mail message (including any attached or > embedded documents) is intended for the exclusive and confidential use of the > individual or entity to which this message is addressed, and unless otherwise > expressly indicated, is confidential and privileged information of Rackspace. > Any dissemination, distribution or copying of the enclosed material is prohibited. > If you receive this transmission in error, please notify us immediately by e-mail > at ab...@rackspace.com, and delete the original message. > Your cooperation is appreciated. > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : openstack@lists.launchpad.net > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~ Dan Wendlandt Nicira Networks, Inc. www.nicira.com | www.openvswitch.org Sr. Product Manager cell: 650-906-2650 ~~~~~~~~~~~~~~~~~~~~~~~~~~~
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