Tuesday, 2016-09-13

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openstackgerritZongKai LI proposed openstack/networking-ovn: Fix dhcp_disabled ip_version error  https://review.openstack.org/36910701:20
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openstackgerritZongKai LI proposed openstack/networking-ovn: clean stale port dhcpv4 options within port op  https://review.openstack.org/36653601:45
openstackgerritMerged openstack/networking-ovn: OVN trunk driver to support vlan-aware-vms  https://review.openstack.org/35640901:51
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openstackgerritxurong00037997 proposed openstack/networking-ovn: ovn-remote port should be 6642  https://review.openstack.org/36911902:11
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openstackgerritZongKai LI proposed openstack/networking-ovn: Fix dhcp_disabled ip_version error  https://review.openstack.org/36910707:47
openstackgerritZongKai LI proposed openstack/networking-ovn: clean stale port dhcpv4 options within port op  https://review.openstack.org/36653607:47
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openstackgerritZongKai LI proposed openstack/networking-ovn: Support native OVN DHCPv6  https://review.openstack.org/32696408:16
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openstackgerritRichard Theis proposed openstack/networking-ovn: Support a mixed DPDK and non-DPDK environment  https://review.openstack.org/34717613:15
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openstackgerritZongKai LI proposed openstack/networking-ovn: Support native OVN DHCPv6  https://review.openstack.org/32696414:30
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openstackgerritRichard Theis proposed openstack/networking-ovn: Support a mixed DPDK and non-DPDK environment  https://review.openstack.org/34717615:06
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openstackgerritJas Singh proposed openstack/networking-ovn: VM metadata access with native-dhcp  https://review.openstack.org/31530516:23
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-openstackstatus- NOTICE: The Gerrit service on review.openstack.org is being restarted now to address current performance problems, but should return to a working state within a few minutes17:10
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chandravrtheis: ping20:39
rtheis chandrav: hi20:39
chandravHi richard20:39
chandravso, i wanted to discuss about the transit network ports and the need to store them in neutron20:40
rtheisok20:40
chandravyou were suggesting that we can handle in ovn without neutron20:40
rtheisyes, I was wondering if that was possible20:40
chandravALL we need is a set of IP and MACs20:40
chandravi wasnt sure how to generate mac addresses, which will not collide with anything else in neutron20:41
chandravthats the sole reason why i coded it that way20:41
rtheisI see... looking at neutron code now20:43
rtheischandrav: when a port is created without a mac address specified, it appears that self._generate_mac() is called20:47
rtheiswhich calls utils.get_random_mac(cfg.CONF.base_mac.split(':'))20:47
rtheiswhich doesn't check for duplicates20:47
rtheisand when a mac address is specified, _is_mac_in_use is called20:48
rtheisbut that is specific to the network20:49
rtheisAre you looking for a globally unique mac address ?20:49
chandravno20:50
rtheisMaybe calling utils.get_random_mac(cfg.CONF.base_mac.split(':')) is sufficient20:52
rtheiswe use it today http://git.openstack.org/cgit/openstack/networking-ovn/tree/networking_ovn/ml2/mech_driver.py#n43020:53
chandravThanks rthies: I'll take a look. I am game for not storing it in neutron20:56
rtheischandrav: thanks for taking a look20:57
chandravrtheis: I take back by statement about the no need for globally unique mac address.21:05
chandravwe will be using the mac address in the ovn datapath, so it has to be unique21:06
rtheisokay, we'll then I don't think you get that from either method21:06
chandravyeah21:06
chandraveven when we create a port without specifying the mac address, neutron is checking if the mac_address is in use, if yes, it does retires before erroring out21:07
chandravso i dont see a way out without storing in neutron21:07
rtheisbut does neutron actually check beyond the network21:07
rtheisThat is, I only see it looking for duplicates on the same network21:08
rtheisSo I don't see it catching a duplicate between the transit network and another network21:08
chandravyeah21:09
rtheisSo we may need something like dvr_base_mac21:09
rtheisWhich is basically a different starting base mac21:09
rtheisutils.get_random_mac(cfg.CONF.dvr_base_mac.split(':'))21:10
rtheisThis is what the neutron dvr code uses21:10
chandravare there rules, which govern the base mac usage >21:11
chandrav?21:11
rtheisonly those that I can gather from reading the code21:13
rtheisyou could ask on #openstack-neutron for more details21:15
chandravthans rheis21:15
rtheischandrav: it appears base mac is for (non-dvr) ports created without mac address specified.21:16
rtheisbut it appears that you can specify a mac address that doesn't conform to base_mac21:17
rtheisas long as it isn't in use on the network21:17
rtheisfor the port21:17
rtheisIf we have a l3_base_mac that is unique from neutron base_mac and dvr_base_mac then there could only be conflicts with those creating ports by specifying these reserved macs21:19
rtheisso it would be up to ovn driver to prevent these reserved macs from being used21:20
rtheisml2 ovn driver21:20
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rtheisheading out now21:45
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aim_openstack_Hello there, I am trying to make neutron and ovn integration work on a  CentOS VM. I have taken latest openstack newton and latest networking-ovn package My neutron server service is not working properly. When I do systemctl restart neutron-server, it fails and in the logs I see this error-  neutron-server[18030]: ERROR: Could not bind to 0.0.0.0:9696 after trying for 30 seconds I googled for this error but could22:39
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