Wednesday, 2016-11-16

openstackgerritOmer Anson proposed openstack/dragonflow: Load Balancer as a Server V2 specification  https://review.openstack.org/39799700:08
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openstackgerritLi Ma proposed openstack/dragonflow: Use devstack-buildin service mgmt script  https://review.openstack.org/39591001:52
openstackgerritrajiv proposed openstack/dragonflow: Moved config options for l2_app  https://review.openstack.org/39472503:02
openstackgerritrajiv proposed openstack/dragonflow: Moved config options of metadata_service_app  https://review.openstack.org/39428203:02
openstackgerritHong Hui Xiao proposed openstack/dragonflow: [WIP] Add port qos code  https://review.openstack.org/33749703:42
openstackgerritLi Ma proposed openstack/dragonflow: Use devstack-buildin script for install/uninstall pkgs  https://review.openstack.org/39591904:26
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oansonyuli_s, ping07:25
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oansonMorning08:38
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openstackgerritLi Ma proposed openstack/dragonflow: Use devstack-buildin script for install/uninstall pkgs  https://review.openstack.org/39591909:20
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rajivkoanson, ping09:57
oansonrajivk, pong09:58
rajivk:), i was trying to understand code.09:58
rajivkIs there any documentation, which gives information about09:58
rajivkwhat is the different ports, vm, brdige etc used in code and what is the purpose?09:59
oansonI don't think we have docs going down to that level of detail09:59
rajivkok, can you name the concepts, they are serving?10:00
rajivki will read about those.10:00
oansonSorry, I don't think I understand.10:00
rajivkmay be my questions are invalid. :)10:01
rajivkWhen vm, tunnel and brgide ports are used?10:02
oansonAh, I see.10:03
rajivkIf you can give me links, i will go through them.10:03
oansonVM ports are used to communicate with VMs (in future possibly also containers, namespaces, etc.). They are created by Nova, and added to OVSDB with a plug-vif event10:03
oansonI don't think we have docs on this. I will see if I can write something (maybe a blog post)10:04
oansonDragonflow monitors OVSDB, and once such an event is detected, we connect the Neutron port with the VM port.10:04
oansonTunnel ports are created by Dragonflow. They are used to create the overlay network accross compute nodes. Currently, we have a tunnel between any two compute nodes. With https://review.openstack.org/#/c/387017/ , we will have one port per compute node that will be used to connect to all others10:05
rajivkmesh topology?10:06
oansonBridges - here its a bit less organised.10:06
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oansonrajivk, mesh topology - yes (If I understand you correctly) All compute nodes are in a mesh. Each can talk with all others10:07
rajivkoanson, yes, you understand me correctly.10:07
oansonThere is the integration bridge (by default br-int), where all VMs and tunnel ports connect to. We use flows to implement the SDN.10:07
oansonThere is an external bridge (by default br-ex), to which external interfaces are connected, and dNAT packets are routed to that.10:08
oansonAdditional bridges can be added for provider networks. The mapping is done in configuration.10:08
rajivkok10:08
oansonThen we no that when a packet needs to be passed to the provider network, it is sent to that bridge. Bridges are connected using patch-ports. I think only the integration bridge is connected to any other bridge.10:09
oansoni.e. br-ex and provider network bridges are not connected.10:09
openstackgerritLi Ma proposed openstack/dragonflow: Use devstack-buildin script for install/uninstall pkgs  https://review.openstack.org/39591910:10
rajivkthanks for the information oanson10:10
oansonrajivk, no problem10:10
rajivkwhen i was going through code, then i may be wrong but arrangment of df_local_controller did not seem good to me10:11
rajivkIf i am not wrong then DfLocalController class is used for initialigind ryu and other things. and it has code for _associate_floating_ip10:12
rajivkthat i found strange.10:12
rajivkoanson, one last question. which code set this pipeline http://docs.openstack.org/developer/dragonflow/pipeline.html10:14
oansonThis is not done in one specific place. It is distributed across the Dragonflow applications.10:15
oansonEach application updates one (or a few) blocks in the pipeline (figure 1)10:15
oansonFor instance, the L2 application updates the L2 lookup block. It also installs ARP responders (ARP block)10:15
oansonL3 updates the L3 lookup blocks. It also adds ARP responders (ARP block), but only for routers10:16
rajivkokay10:16
openstackgerritLihi Wishnitzer proposed openstack/dragonflow: IPv6 Support in Dragonflow specification  https://review.openstack.org/39622610:16
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oansonyuli_s, you in?12:03
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openstackgerritOmer Anson proposed openstack/dragonflow: Support passing credentials via env in fullstack  https://review.openstack.org/39448313:00
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openstackgerritWangJian proposed openstack/dragonflow: Refactor port-status-update NB API  https://review.openstack.org/39691515:08
openstackgerritYuli proposed openstack/dragonflow: [WIP] Tap-as-a-service plugin  https://review.openstack.org/39630715:08
openstackgerritWangJian proposed openstack/dragonflow: Refactor port-status-update NB API  https://review.openstack.org/39691515:23
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