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| zykes- | salv-orlando: idling or got some time ? | 14:41 |
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| salv-orlando | zykes-: I am active now | 15:47 |
| zykes- | salv-orlando: oh! | 15:47 |
| zykes- | salv-orlando: should we be able to ping an interface from the dhcp / l3 interfaces ? | 15:48 |
| zykes- | say I wanna test connectivity from l3 > dhcp ? | 15:48 |
| salv-orlando | you should be able to ping vm interfaces from the l3 and dhcp namespaces | 15:48 |
| zykes- | ping -I tap-<random> 172.16.59.1 | 15:48 |
| zykes- | doesn't that work or is ping blocked ? | 15:49 |
| zykes- | EmilienM: you too here ? : ) | 15:49 |
| EmilienM | hey | 15:49 |
| EmilienM | 'f course I'm | 15:49 |
| zykes- | salv-orlando: what happens sometimes is that vm's that are booted are not getting any traffic / dhcp | 15:49 |
| zykes- | nor can you ping them from the controller | 15:49 |
| zykes- | if they do get an ip | 15:50 |
| salv-orlando | zykes-: Ping is not disabled | 15:50 |
| zykes- | salv-orlando: well I can't ping from the dhcp interface for example to the router interface | 15:51 |
| salv-orlando | I have observed that sometime the vm boots but does not obtain an IP. The connectivity is fine, but still the dhcp discover does not get any reply | 15:51 |
| salv-orlando | When this happens, if the VM then retries a DHCP request, then it succeeds. | 15:51 |
| zykes- | salv-orlando: here it doesn't succeed, EmilienM help me out ? :p | 15:52 |
| salv-orlando | zykes-: can you ping from the dhcp interface to any vm interface at least? | 15:52 |
| EmilienM | I'm running the same issue guys | 15:52 |
| zykes- | salv-orlando: not when i've tried salv-orlando | 15:53 |
| salv-orlando | ok - so basically the dhcp interface was kind of isolated | 15:53 |
| EmilienM | I try to investigate with tcpdump -i tapXXXX (DHCP interface) but nothing in/out | 15:53 |
| zykes- | salv-orlando: kind of isolated ? | 15:53 |
| salv-orlando | if this is correct, no VM should have received an address. Is this right? | 15:53 |
| EmilienM | right for me | 15:53 |
| salv-orlando | zykes-: yeah I meant isolated like unable to communicate with any other | 15:54 |
| zykes- | yeah | 15:54 |
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| EmilienM | salv-orlando: zykes- I have this issue since 2 or 3 days | 15:56 |
| EmilienM | not before | 15:57 |
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| EmilienM | actually, since I'm running OVS in tunneling mode with gre | 15:57 |
| zykes- | i'm doing vlan | 15:57 |
| salv-orlando | seems like the dhcp agent is being attached to the "dead clan" | 15:58 |
| salv-orlando | clan => vlan | 15:58 |
| zykes- | dead clan ? | 15:58 |
| zykes- | salv-orlando: what does that mean ? | 15:59 |
| salv-orlando | clan => vlan | 15:59 |
| zykes- | what's a dead vlan ? | 15:59 |
| salv-orlando | (or you are too using colloquy for machos....) | 15:59 |
| salv-orlando | it's the default vlan where the agent puts the interfaces that it does not know where they should be | 15:59 |
| salv-orlando | basically all "alien" interfaces go there | 15:59 |
| salv-orlando | its vlan tag is 4095 | 16:00 |
| zykes- | salv-orlando: hmm, is it a thing we have done wrong or ? | 16:00 |
| salv-orlando | if this is the tag for your dhcp interface, this is what is happening and we need to understanding why it is happening | 16:00 |
| zykes- | I don't have my env up now but.. | 16:01 |
| EmilienM | I have | 16:01 |
| EmilienM | clean | 16:01 |
| EmilienM | http://paste.openstack.org/show/itelZgrGHcH8X1eyCJFC/ | 16:02 |
| salv-orlando | zykes-: this would be weird bu otherwise I cannot explain why the interface is up - dnsmasq is up and running, and the vm still do not get ip | 16:02 |
| EmilienM | my controller node with Quantum L3 + DHCP too | 16:02 |
| EmilienM | tap8be6b4c8-01 is DHCP interface | 16:02 |
| salv-orlando | ok - so the tag is fine | 16:03 |
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| salv-orlando | EmilienM: if you spin a VM, does it get an IP address? | 16:03 |
| EmilienM | nop | 16:03 |
| EmilienM | I can share all my conf if you want | 16:03 |
| EmilienM | I use non-namespace | 16:04 |
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| salv-orlando | EmilienM: first, if you try to spin a VM does its port get the appropriate tag? | 16:04 |
| EmilienM | that could be relative to OVS Driver into DHCP ini file ? | 16:04 |
| EmilienM | let me try | 16:04 |
| EmilienM | salv-orlando: tag 6 | 16:05 |
| EmilienM | since DHCP is tagged 1, that's OK I think | 16:06 |
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| EmilienM | I'm running everything into VMs and use private network for eth1 so I guess packets are tagged | 16:06 |
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| salv-orlando | EmilienM: I am not sure it is ok. Vlan 1 is not a trunk. | 16:07 |
| EmilienM | but anyway, I'm using GRE tunnel, so we don't care about network hardware | 16:07 |
| salv-orlando | EmilienM: is the VM on a different host than the dhcp agent? | 16:08 |
| EmilienM | yes | 16:08 |
| EmilienM | I run : | 16:08 |
| EmilienM | 1 controller with everything except nova-compute | 16:08 |
| EmilienM | 1 compute with nova-compute + KVM + nova-api-metadata | 16:08 |
| salv-orlando | ok - so it is fine that the two tags are different. | 16:09 |
| EmilienM | ok | 16:10 |
| EmilienM | salv-orlando: how dnsmasq can communicate with the VM so ? | 16:10 |
| EmilienM | I was thinking about interface_driver into /etc/quantum/dhcp_agent.ini | 16:10 |
| EmilienM | now it's quantum.agent.linux.interface.OVSInterfaceDriver, but need I change it for Hybrid OVS ? | 16:11 |
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| salv-orlando | there should be open flow rules to map "local" vans (eg.6 and 1) into appropriate values when the packets is encapsulated over the gre tunnel. | 16:11 |
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| salv-orlando | We advice using the hybrid driver, especially if you running anything different than NoOpFirewall | 16:12 |
| EmilienM | even for DHCP service, right ? | 16:12 |
| EmilienM | salv-orlando: I'm running firewall_driver=nova.virt.libvirt.firewall.IptablesFirewallDriver | 16:13 |
| salv-orlando | Ok - so I'd try switching to the hybrid driver (otherwise all dhcp will get dropped) | 16:14 |
| EmilienM | nova.virt.libvirt.vif.LibvirtHybridOVSBridgeDriver ? | 16:15 |
| EmilienM | I already use it for "libvirt_vif_driver" flag into nova.conf | 16:15 |
| salv-orlando | EmilienM: ok - so you won't need to use if for the dhcp | 16:17 |
| EmilienM | not working for DHCP | 16:17 |
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| EmilienM | I let the default parameters | 16:17 |
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| EmilienM | salv-orlando: that's strange to see nothing with tcpdump -i tapXXX | 16:18 |
| salv-orlando | EmilienM: this means the DHCP messages are not reaching the dhcp agent | 16:19 |
| salv-orlando | I wonder if those packets are travelling across the tunnel at least | 16:19 |
| EmilienM | I guess no | 16:19 |
| salv-orlando | do you see them coming from the patch port with br-tun on the host where the dhcp agent is? | 16:20 |
| EmilienM | I "tcpdump -i eth1" (eth1 is used by OVS) and nothing comes | 16:20 |
| zykes- | salv-orlando: but I had problems as well with VLAN | 16:20 |
| zykes- | FYI | 16:20 |
| EmilienM | salv-orlando: I check now | 16:20 |
| salv-orlando | zykes-: Indeed. I want to make sure the packets are going from one host to another. There a step, which is a conversion of the tag which is common to vlan and fre. | 16:21 |
| salv-orlando | You should see those rules with ovs-ofctl dump-flows br-int | 16:21 |
| zykes- | sadly I can't check atm :( | 16:22 |
| EmilienM | salv-orlando: http://paste.openstack.org/show/B9OyT9yH0Gd8I3zlcILw/ | 16:22 |
| EmilienM | 0 flow | 16:22 |
| EmilienM | tcpdump does not work with br-tun | 16:23 |
| EmilienM | http://paste.openstack.org/show/gLPylc5t40ykpZbvuGNy/ | 16:23 |
| EmilienM | salv-orlando: zykes- ^ | 16:24 |
| salv-orlando | tcpdump probably wants you to bring up br-tun if - the ovs-ofctl output for br-tun is suspicious | 16:28 |
| salv-orlando | Certainly not a lot if being forwarded with that drop rule | 16:28 |
| salv-orlando | zykes- | 16:28 |
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| salv-orlando | when will you be able to access your environment? | 16:29 |
| EmilienM | I did not change anything about br-tun | 16:29 |
| EmilienM | salv-orlando: do you have a setup running ? | 16:33 |
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| salv-orlando | What is the value for tenant_network_type in your plugin configuration? Should be "gre" | 16:33 |
| salv-orlando | EmilienM: I meant agent configuration (l2 agent) | 16:34 |
| EmilienM | tenant_network_type = gre | 16:34 |
| EmilienM | right | 16:34 |
| EmilienM | in my /etc/quantum/plugins/openvswitch/ovs_quantum_plugin.ini | 16:34 |
| EmilienM | salv-orlando: ^ | 16:35 |
| EmilienM | tunnel_id_ranges = 1:1000 | 16:35 |
| EmilienM | integration_bridge = br-int | 16:35 |
| EmilienM | tunnel_bridge = br-tun | 16:35 |
| EmilienM | local_ip = 10.0.0.4 | 16:35 |
| EmilienM | enable_tunneling = True | 16:35 |
| EmilienM | tenant_network_type = gre | 16:35 |
| salv-orlando | EmilienM: it all looks good to me. | 16:36 |
| salv-orlando | Can you confirm dnsmasq is up and running? | 16:36 |
| salv-orlando | (and properly configured) | 16:37 |
| EmilienM | salv-orlando: http://paste.openstack.org/show/HtFRnAT8vDOse8jmBNd1/ | 16:37 |
| EmilienM | salv-orlando: http://paste.openstack.org/show/kF35n3fxfN8LSQwln1E6/ | 16:39 |
| EmilienM | something wrong ? | 16:39 |
| salv-orlando | Nope. It seems we need to debug a connection problem. The only suspicious bit is that drop rule in br-tun | 16:40 |
| salv-orlando | I have no access to VPN now - will need it for multi-host tests. So I suggest you file a bug report and add all the things you pasted here to it. | 16:41 |
| salv-orlando | I will be able to have a look at it later tonight | 16:41 |
| EmilienM | salv-orlando: ok, thx | 16:42 |
| zykes- | salv-orlando: why's there a drop rule if I can ask ? | 16:42 |
| EmilienM | salv-orlando: maybe that's not a bug, maybe something is wrong on my setup | 16:43 |
| EmilienM | hey guys : https://bugs.launchpad.net/quantum/+bug/1011467 | 16:45 |
| uvirtbot | Launchpad bug 1011467 in quantum "OVS plugin tunnel bridges never learn" [High,Fix released] | 16:45 |
| EmilienM | it seems that's related o my issue I think | 16:45 |
| zykes- | salv-orlando: where you mean with a drop rule ? | 16:46 |
| salv-orlando | zykes-: http://paste.openstack.org/show/gLPylc5t40ykpZbvuGNy/ | 16:46 |
| EmilienM | salv-orlando: how can I change the action from drop to accept ? | 16:47 |
| EmilienM | or NORMAL | 16:47 |
| salv-orlando | yeah you can update the rule with ovs-ofctl (check manage for detail) | 16:48 |
| EmilienM | ok | 16:48 |
| salv-orlando | but I'd like to avoid doing ths | 16:48 |
| EmilienM | yes, but If i do that, and if it's running, we have found from where is coming the issue, right ? | 16:49 |
| EmilienM | from my *basic* troubleshooting view | 16:49 |
| salv-orlando | EmilienM: I did some basic static analysis of the code | 16:50 |
| salv-orlando | The drop rule is the default rules - proper rules should be added when port_bound is invoked | 16:50 |
| salv-orlando | hence - it all goes back probably to the dhcp issue… Seems like the agent is not recognising it as a new port? | 16:51 |
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| EmilienM | salv-orlando: yep, and something else weird: when you try to tcpdump the dhcp tap interface, you can't because the tap is not "up" | 16:55 |
| salv-orlando | oh | 16:55 |
| salv-orlando | zykes- was seeing something similar…. can you post /etc/network/interfaces? | 16:56 |
| salv-orlando | turned out for him that the bridge should not configured there as a linux bridge - otherwise interfaces will not go up | 16:56 |
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| EmilienM | salv-orlando: http://paste.openstack.org/show/KINNzXNaEl0RfKnvZBad/ | 16:59 |
| EmilienM | my interfaces : | 17:00 |
| EmilienM | http://paste.openstack.org/show/JJ2KB8JVB1rjQ8oiqdU9/ | 17:00 |
| EmilienM | salv-orlando:^ | 17:00 |
| salv-orlando | EmilienM: everything is fine. I have to leave now. Can you file a bug report with all these details? I will try to reproduce later on. If it turns out is a configuration issue we will just set the bug to ivalid | 17:01 |
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| EmilienM | salv-orlando: ok | 17:01 |
| salv-orlando | ok, thanks | 17:01 |
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| EmilienM | salv-orlando: thx, enjoy your sunday | 17:02 |
| EmilienM | salv-orlando: zykes- it's working /o\ | 17:06 |
| EmilienM | my network in DB was in "local" type | 17:08 |
| EmilienM | delete / recreate the network, and it's working. | 17:09 |
| EmilienM | but | 17:09 |
| EmilienM | I snif the tap interface and I have ARP, Request who-has 10.5.5.1 tell 10.5.5.3 | 17:09 |
| EmilienM | 10.5.5.1 is my virtual router interface, and 10.5.5.3 is the instance | 17:09 |
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| EmilienM | I think that's related to https://bugs.launchpad.net/quantum/+bug/1011467 | 17:13 |
| uvirtbot | Launchpad bug 1011467 in quantum "OVS plugin tunnel bridges never learn" [High,Fix released] | 17:13 |
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| salv-orlando | EmilienM: did you file a bug | 19:53 |
| EmilienM | nop, since it's not a bug :) | 19:54 |
| EmilienM | my issue was : | 19:54 |
| EmilienM | I created the networks 2 days ago, before running tunnel mode | 19:54 |
| EmilienM | in the DB I could see "local" type | 19:54 |
| EmilienM | I've deleted the network and created it again, and it works. | 19:55 |
| EmilienM | salv-orlando: I'm troubleshooting now why I can't reach Internet from my VM. | 19:56 |
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| salv-orlando | EmilienM: so basically it was the network_type issue. The proper setting would have worked for new networks. | 20:06 |
| salv-orlando | Can you ping the external gateway ip? | 20:06 |
| EmilienM | salv-orlando: no | 20:07 |
| EmilienM | I can ping br-ex | 20:07 |
| salv-orlando | but I guess you can ping the internal gateway ip? | 20:07 |
| EmilienM | public IP of virtual router (qg-*) | 20:07 |
| EmilienM | yes I can ping qg- | 20:08 |
| EmilienM | and qr-* | 20:08 |
| EmilienM | maybe that's a routing issue | 20:08 |
| salv-orlando | great. I recall you have qg-xxxx on the same bridge as eth2 | 20:08 |
| salv-orlando | is that correct? | 20:08 |
| EmilienM | I'm running 2 VMs on my laptop (1 controller, 1 compute), from my home network. I set the external gateway as my wifi router IP | 20:08 |
| EmilienM | Bridge br-ex | 20:09 |
| EmilienM | Port "qg-b4e74d3f-52" | 20:09 |
| EmilienM | Interface "qg-b4e74d3f-52" | 20:09 |
| EmilienM | type: internal | 20:09 |
| EmilienM | Port br-ex | 20:09 |
| EmilienM | Interface br-ex | 20:09 |
| EmilienM | type: internal | 20:09 |
| EmilienM | Port "eth2" | 20:09 |
| EmilienM | Interface "eth2" | 20:09 |
| EmilienM | from my VM, I can ping both br-ex & qg- | 20:10 |
| EmilienM | salv-orlando: if you are interested by the way I used to create networks : http://goo.gl/h6cdY | 20:11 |
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| EmilienM | salv-orlando: any idea ? | 20:24 |
| salv-orlando | can you confirm qg-xxx is on the same network as eth2 and they both have a direct route to your wifi router ip? | 20:24 |
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| EmilienM | my "public" subnet is 192.168.0.0/24 and qg is 192.168.0.130, br-ex is 192.168.0.168 | 20:27 |
| EmilienM | salv-orlando: ip netns list is empty :/ | 20:27 |
| salv-orlando | did you say you're running without namespaces? | 20:28 |
| EmilienM | yes | 20:28 |
| salv-orlando | I guess you can ping 192.168.0.168 from your instances, but not 192.168.0.1 or whatever your wifi router gw is | 20:29 |
| salv-orlando | is that correct? | 20:29 |
| EmilienM | salv-orlando: exacly | 20:29 |
| EmilienM | exactly* | 20:29 |
| salv-orlando | is there an ip still configured on eth2? | 20:29 |
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| EmilienM | no | 20:33 |
| EmilienM | salv-orlando: ^ | 20:33 |
| EmilienM | br-ex yes | 20:33 |
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| EmilienM | but not really need, right ? | 20:34 |
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| salv-orlando | No if you add an IP to eth2 then thing screw up - this is why I was asking | 20:35 |
| salv-orlando | Is eth2 your wifi adapter? | 20:35 |
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| EmilienM | nop | 20:35 |
| EmilienM | I run 2 VMs with VMware Workstation | 20:35 |
| EmilienM | 1 controller: eth0 (managment) eth1 (VMs traffic) eth2 (public network) | 20:36 |
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| EmilienM | eth2 is connected in bridge with my wlan interface (I run Ubuntu) | 20:36 |
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| EmilienM | but if that's an issue related to this setup, let me know. | 20:37 |
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| salv-orlando | nope that' ok. This is pretty much what I run | 20:38 |
| EmilienM | salv-orlando: I try to keep close from reality | 20:40 |
| EmilienM | in separating networks | 20:40 |
| salv-orlando | EmilienM: I do apologise if I ask a dump question but can you reach the Internet from the host through br-ex? | 20:41 |
| EmilienM | salv-orlando: are you able to ping outside ? | 20:41 |
| salv-orlando | Yeah - the only difference with yours is that I have my VMs natted | 20:41 |
| EmilienM | hum | 20:41 |
| salv-orlando | Instead it seems you directly set up a wireless link from the ubuntu vm | 20:42 |
| EmilienM | eth0 is natted to | 20:42 |
| EmilienM | eth2 is bridged | 20:42 |
| EmilienM | eth1 is private network | 20:42 |
| salv-orlando | ok so eth0 is natter, eth2 is bridged. When you go to the internet from the host, do you go through eth0 or eth2? | 20:42 |
| EmilienM | for br-ex: how can I check that ? | 20:42 |
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| EmilienM | what is the host for you, I'm confused | 20:43 |
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| EmilienM | my laptop ? my controller ? compute ? VM ? | 20:43 |
| salv-orlando | your vm | 20:44 |
| EmilienM | eth2 I guess | 20:44 |
| salv-orlando | the one where br-ex - which I guess is the controller | 20:44 |
| salv-orlando | you can easily check this running route on the controller host. | 20:45 |
| EmilienM | salv-orlando: http://paste.openstack.org/show/6tRHpOKDwA9ra0lLn8nZ/ | 20:45 |
| salv-orlando | two default gateways is not an ideal condition, but should not be an issue as the one through eth0 is marked as more expensive. | 20:47 |
| EmilienM | I can delete second one | 20:48 |
| EmilienM | -> same | 20:48 |
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| salv-orlando | This does not seem to be a Quantum issue (the packet gets NATted properly). the only thing I can suspect is that the link through eth2 is probably broken. As it is a wireless link, probably when you reconfigured the IPs for assigning eth2 IP to br-ex the link went down. | 20:49 |
| EmilienM | yes, I'm quite sure that's not because of Quantum | 20:49 |
| mnaser | salv-orlando: seeing as you seem to know quite much about quantum, is openvswitch + sec groups + xenserver supported or still not yet? :p | 20:49 |
| salv-orlando | Not officially. Which means it might work but might required a lot of pain | 20:49 |
| mnaser | ugh | 20:50 |
| mnaser | i need multiple subnets per network, but i only use simple flat network | 20:50 |
| salv-orlando | I have not tested any folsom component on XCP/XS. | 20:50 |
| mnaser | so quantum is such overkill for a small feature and yeah, can i use linuxbridge + xenserver + quantum | 20:50 |
| mnaser | ah | 20:50 |
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| mnaser | nova-network + bridging + sec groups works fine now, just not sure about quantum in this case | 20:50 |
| mnaser | bridging aka openvswitch disabled on xenserver host | 20:50 |
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| salv-orlando | You might be better off deploying xcp-xapi un ubuntu | 20:51 |
| mnaser | but i already have an existing deployment right now so trying to make things work out with what i have | 20:51 |
| salv-orlando | nova-network still works with basic networking (i.e.: linuxbridge) in xenserver - I am not sure about the VLAN mode (we had it working in Diablo, but then I have no idea what happened) | 20:51 |
| mnaser | yes, i currently use it at the moment, its just that i need the multiple subnets per network | 20:52 |
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| salv-orlando | mnaser: If your use case if Flat, I think the recommendation for the Folsom release is to use nova network; especially if you have a xapi backend | 20:53 |
| mnaser | salv-orlando: i am currently using trunk with my own additions to openstack so not necessarily folsom, the deployment is already live and working | 20:53 |
| mnaser | i'd keep nova-network if i can somehow be able to have multiple subnets per network, use case here is public network for fixed public IPs for vms | 20:54 |
| mnaser | so my public network is getting exhausted soon, but i don't want to create another one for each subnet, so yeah. | 20:54 |
| salv-orlando | mnaser: I don't think nova network supports this use case out of the box. As far as I recall there's no separation between subnet and network concepts. But you should ask some nova network expert, such as tr3buchet for more info | 20:55 |
| mnaser | i see, well I was checking the nova xenapi virt driver and it did support multiple subnets | 20:55 |
| mnaser | but going through nova-network it seems that it does not have such features | 20:55 |
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| EmilienM | salv-orlando: I'm done for today, thanks for help, see you soon | 20:57 |
| salv-orlando | EmilienM: ok, goodnight | 21:01 |
| salv-orlando | mnaser: to the best of my knowledge, it does not support multiple subnets per network | 21:01 |
| mnaser | yep as i'm reading and going through the ipam code, it doesnt | 21:02 |
| mnaser | i'm just stomped on how i'll move the existing network allocation from nova-network to quantum | 21:03 |
| mnaser | i really hope there's a sort of migration path or someone has done it | 21:03 |
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| zykes- | salv-orlando: ping | 21:11 |
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| salv-orlando | zykes-: I was almost missing you :) | 21:17 |
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| salv-orlando | zykes-: pong | 21:23 |
| salv-orlando | you there? | 21:23 |
| zykes- | salv-orlando: y | 21:24 |
| zykes- | what's a good way to use a ovs interface as a interface for management ? | 21:25 |
| salv-orlando | you mean for managing the virtual switch itself or for setting up a management network for openstack? | 21:25 |
| zykes- | management network | 21:26 |
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| zykes- | darn it | 21:31 |
| zykes- | :p | 21:31 |
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| zykes- | salv-orlando: basically what I do now it create a bridge with br-ex | 21:34 |
| zykes- | and I assign a ip to it | 21:34 |
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| zykes- | salv-orlando: ? :p | 21:49 |
| zykes- | god dammit :D | 21:49 |
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| zykes- | salv-orlando: still herE ? | 22:02 |
| salv-orlando | yep | 22:02 |
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| zykes- | *goes mad* | 22:30 |
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| openstackgerrit | A change was merged to openstack/nova: Imported Translations from Transifex https://review.openstack.org/13682 | 23:02 |
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| openstackgerrit | A change was merged to openstack/nova: xenapi: implement resume_state_on_host_boot https://review.openstack.org/13861 | 23:51 |
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