Re: [openstack-dev] ML2 Type driver for supporting network overlays, with more than 4K seg

2014-04-04 Thread Padmanabhan Krishnan
The blueprint is updated with more information on the requirements and interaction with VDP https://blueprints.launchpad.net/neutron/+spec/netron-ml2-mechnism-driver-for-cisco-dfa-support On Monday, March 31, 2014 12:50 PM, Padmanabhan Krishnan wrote: Hi Mathieu, Thanks for the link. Some s

Re: [openstack-dev] ML2 Type driver for supporting network overlays, with more than 4K seg

2014-03-31 Thread Padmanabhan Krishnan
Hi Mathieu, Thanks for the link. Some similarities for sure. I see Nova libvirt being used. I had looked at libvirt earlier. Firstly, the libvirt support that Nova uses to communicate with LLDPAD doesn't have support for the latest 2.2 standard. The support is also only for the VEPA mode and no

Re: [openstack-dev] ML2 Type driver for supporting network overlays, with more than 4K seg

2014-03-28 Thread Mathieu Rohon
Hi, the more I think about your use case, the more I think you should create a BP to have tenant network based on interfaces created with VDP protocol. I'm not a VDP specialist, but if it creates some vlan back interfaces, you might match those physical interfaces with the physical_interface_mapp

Re: [openstack-dev] ML2 Type driver for supporting network overlays, with more than 4K seg

2014-03-27 Thread Padmanabhan Krishnan
Hi Mathieu, Thanks for your reply. Yes, even i think the type driver code for tunnels can remain the same since the segment/tunnel allocation is not going to change. But some distinction has to be given in the naming or by adding another tunnel parameter to signify a network overlay. For tunne

Re: [openstack-dev] ML2 Type driver for supporting network overlays, with more than 4K seg

2014-03-26 Thread Mathieu Rohon
Hi, thanks for this very interesting use case! May be you can still use VXLAN or GRE for tenant networks, to bypass the 4k limit of vlans. then you would have to send packets to the vlan tagged interface, with the tag assigned by the VDP protocol, and this traffic would be encapsulated inside the

[openstack-dev] ML2 Type driver for supporting network overlays, with more than 4K seg

2014-03-24 Thread Padmanabhan Krishnan
Hello, I have a topology where my Openstack compute nodes are connected to the external switches. The fabric comprising of the switches support more than 4K segments. So, i should be able to create more than 4K networks in Openstack. But, the VLAN to be used for communication with the switches i