[Openstack] [vtn-dev] Broken links

Silvia Fichera fichera.sil at gmail.com
Tue Jul 14 15:39:52 UTC 2015


Hi Venkat,
I'm using Helium SR2 as it is suggested in the wiki.
So you suggest to use Lithium or it is a negligible problem?
Thanks.
Silvia

2015-07-13 21:04 GMT+02:00 Venkatrangan G - ERS, HCL Tech <
venkatrangang at hcl.com>:

>  Hi Silvia,
>
>
>
> It is enough  to just stack again. To provide more info, Can you please
> confirm if you are using Helium or Lithium release of OpenDayLight. With
> the Helium release, the removed switches may still feature in the dlux
> topology but with no ports. But the new topology will work fine with no
> issues. This may not occur in the Lithium release.  Please let us know in
> case of any queries
>
>
>
> Regards,
>
> Venkat G
>
>
>
> *From:* Silvia Fichera [mailto:fichera.sil at gmail.com]
> *Sent:* Wednesday, July 8, 2015 3:04 AM
>
> *To:* Venkatrangan G - ERS, HCL Tech
> *Cc:* vtn-dev at lists.opendaylight.org; openstack at lists.openstack.org
> *Subject:* Re: [vtn-dev] Broken links
>
>
>
> Hi Venkat,
>
> according to the last problem I reported, could also be that the ODL
> controller sees pending instances?
>
> I mean, if the odl controller goes down when there are some lauched
> instances, when I restart it and I stack again the ODL COntroller still
> sees instances that are no more launched in OpenStack. So I have to install
> again also ODL, not only stack again.
>
> Could you confirm this?
>
>
>
> Thanks
>
> Silvia
>
>
>
> 2015-06-26 19:43 GMT+02:00 Venkatrangan G - ERS, HCL Tech <
> venkatrangang at hcl.com>:
>
>  Hi Silvia,
>
> Good that you are able to sort out the topology view.
>
> I believe that openstack creates the public network and sub network when
> it starts up. so my opinion is when the controller was restarted these
> references got removed.  so please restack. also to avoid manual
> configuraton of ovs please create vtn.ini and restart odl. if you stack
> after that the ovs settings would be done by vtn manager in odl.
>
> kindly let us know in case of any queries.
>
> Regards,
> Venkat George
>
>
>
>  On Fri, Jun 26, 2015 at 2:38 AM -0700, "Silvia Fichera" <
> fichera.sil at gmail.com> wrote:
>
> Hi Venkat,
>
> I've verified if eth1 was mapped on br-int and it was not. So I've
> unstacked and restart everything and than eth1 was mapped. Now it works.
> Thanks.
>
>
>
> There is still a problem when I restart the ODL controller.
>
> In fact after restarting ODL if I try to add a network I have this error
> in Openstack:
>
>
>
> *Error: *Failed to create network "Net": create_network_postcommit failed.
>
>
>
> And if I try to create a new instance:
>
>
>
> *Error: *Failed to launch instance "asd": Please try again later [Error:
> No valid host was found. Exceeded max scheduling attempts 3 for instance
> 87a3545e-e067-4193-8aaf-8bfa9de6385d. Last exception: [u'Traceback (most
> recent call last):\n', u' File "/opt/stack/nova/nova/compute/manager.py",
> line 2081, in _do_build_and_run_in].
>
>
>
> What happens?
>
> I don't think that I have to reinstall everything everytime that I restart
> the controller...
>
>
>
> Thanks for your support
>
>
>
> 2015-06-25 18:15 GMT+02:00 Venkatrangan G - ERS, HCL Tech <
> venkatrangang at hcl.com>:
>
>  Hi Silvia,
>
>
>
> I hope you have checked the  sudo ovs-vsctl show annd the correct port
> eth1 is mapped to br-int?, Can you  share that output if possible.
>
>
>
> This command to dump flows is actually for Openflow 1.0, Please try sudo
> ovs-ofctl dump-flows –OopenFlow13, that will work successfully.
>
>
>
>
>
> Regards,
>
> Venkat G
>
>
>
>
>
> *From:* Silvia Fichera [mailto:fichera.sil at gmail.com]
> *Sent:* 25 June 2015 07:43
> *To:* Venkatrangan G - ERS, HCL Tech
> *Cc:* vtn-dev at lists.opendaylight.org; openstack at lists.openstack.org
> *Subject:* Re: [vtn-dev] Broken links
>
>
>
> I also noticed that when I try:
>
>
>
> sudo ovs-ofctl dump-flows br-int
>
>
>
> to check if the flow was installed properly I receive this message:
>
>
>
> 2015-06-25T14:36:37Z|00001|vconn|WARN|unix:/var/run/openvswitch/br-int.mgmt:
> version negotiation failed (we support version 0x01, peer supports version
> 0x04)
>
> ovs-ofctl: br-int: failed to connect to socket (Broken pipe)
>
>
>
> Moreover, in Karaf, I've done:
>
>
>
> web:list
>
>
>
> and I can see that the services related to neutron are active but in a
> failed web state.
>
>
>
> ID  | State       | Web-State   | Level | Web-ContextPath
>              | Name
>
>
> -------------------------------------------------------------------------------------------------------------------------------------------------
>
> 219 | Active      | Failed      | 80    |
> /controller/nb/v2/connectionmanager          | connectionmanager.northbound
> (0.1.4.Helium-SR2)
>
> 220 | Active      | Failed      | 80    | /controller/nb/v2/flowprogrammer
>             | flowprogrammer.northbound (0.4.4.Helium-SR2)
>
> 221 | Active      | Failed      | 80    | /controller/nb/v2/hosttracker
>              | hosttracker.northbound (0.4.4.Helium-SR2)
>
> 222 | Active      | Failed      | 80    |
> /controller/nb/v2/networkconfig/bridgedomain |
> networkconfig.bridgedomain.northbound (0.0.5.Helium-SR2)
>
> 223 | Active      | Failed      | 80    | /controller/nb/v2/neutron
>              | networkconfig.neutron.northbound (0.4.4.Helium-SR2)
>
> 224 | Active      | Failed      | 80    | /controller/nb/v2/staticroute
>              | forwarding.staticrouting.northbound (0.4.4.Helium-SR2)
>
> 225 | Active      | Failed      | 80    | /controller/nb/v2/statistics
>             | statistics.northbound (0.4.4.Helium-SR2)
>
> 226 | Active      | Failed      | 80    | /controller/nb/v2/subnetservice
>              | subnets.northbound (0.4.4.Helium-SR2)
>
> 227 | Active      | Failed      | 80    | /controller/nb/v2/switchmanager
>              | switchmanager.northbound (0.4.4.Helium-SR2)
>
> 228 | Active      | Failed      | 80    | /controller/nb/v2/topology
>             | topology.northbound (0.4.4.Helium-SR2)
>
> 229 | Active      | Failed      | 80    | /controller/nb/v2/usermanager
>              | usermanager.northbound (0.0.4.Helium-SR2)
>
> 232 | Active      | Failed      | 80    | /controller/nb/v2/vtn
>              | manager.northbound (0.2.2.Helium-SR2)
>
> 238 | Active      | Failed      | 80    | /ovsdb/nb
>              | OpenDaylight OVSDB Northbound APIs (0.6.2.Helium-SR2)
>
>
>
> Could this be helpful?
>
> Thanks
>
>
>
> 2015-06-25 11:45 GMT+02:00 Silvia Fichera <fichera.sil at gmail.com>:
>
> I'm sorry, I have another doubt about promiscuos mode.
>
> The controller node and the compute nodes, as you said, are created with
> vSphere. But in this environment there is not only those VMs that I'm
> using, but also some other. Who manages this system enabled in promiscuos
> mode the bridges that connect my VMs (data network), and the bridge related
> to the management network.
>
> I did not enabled the bridge that exposes externally ALL VMs that are in
> the server (security reasons). Could be this the problem?
>
>
>
> Thanks
>
>
>
> 2015-06-24 15:17 GMT+02:00 Silvia Fichera <fichera.sil at gmail.com>:
>
> Hi Venkat,
>
> I've checked that everything is in promiscuos mode, the interfaces are
> enabled and I have also added the flow that you told me (it's the same of
> the wiki).
>
> Nothing has changed, links are still broken.
>
> Any other hypothesis or something that I could try?
>
>
>
> 2015-06-23 21:09 GMT+02:00 Venkatrangan G - ERS, HCL Tech <
> venkatrangang at hcl.com>:
>
> Hi Silvia,
>
>
>
> Thanks for your interest in this integration.
>
>  Assuming you are using Helium release (these are some tested steps in
> Helium when the same problems were reported).
>
> There are multiple things that you could do to debug this situation
>
> a.       If you are using vsphere to create the control node and compute
> VM’s then please enable the (Accept Promiscuous mode)
>
>
>
> b.      Sometimes, the Ethernet interfaces may not be “UP” so please
> check ifconfig and if the interface name does ot show up, it is probably
> nnot iun UP. Please bring it up manually ifup <interface_name>
>
>
>
>
>
> c.       Finally, try adding the default flow
>
> ovs-ofctl --protocols=OpenFlow13 add-flow br-int
> priority=0,actions=output:CONTROLLER
>
>
>
> in all the nodes and try the dlux GUI to cjheck if the links appeared.
>
>
>
>
>
> Kindly let us know in case of any queries.
>
>
>
> Regards,
>
> Venkat G
>
>
>
>
>
> *From:* vtn-dev-bounces at lists.opendaylight.org [mailto:
> vtn-dev-bounces at lists.opendaylight.org] *On Behalf Of *Silvia Fichera
> *Sent:* 23 June 2015 08:50
> *To:* vtn-dev at lists.opendaylight.org; openstack at lists.openstack.org
> *Subject:* [vtn-dev] Broken links
>
>
>
> Hi all,
>
> I have installed openstack following the wiki for VTN integration, but
> when I visualize the topology I can see the switches but there are no links
> between them.
>
> The stacking operation seems to be successful.
>
> Someone can help me.
>
> Ask if you need further details.
>
> Regards
>
>
>
> --
>
> Silvia Fichera
>
>
>
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>
>
> --
>
> Silvia Fichera
>
>
>
>
>
> --
>
> Silvia Fichera
>
>
>
>
>
> --
>
> Silvia Fichera
>
>
>
>
>
> --
>
> Silvia Fichera
>
>
>
>
>
> --
>
> Silvia Fichera
>



-- 
Silvia Fichera
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