Open Stack

You should be able to compile openvswitch from source here :
http://openvswitch.org/download/ and then you'll get tunnel support.

Aaron


On Tue, Jul 9, 2013 at 10:21 PM, Haitao Jiang <jianghaitao at gmail.com> wrote:

> Aaron & Chandler
>
> Thanks a lot for the help. I should have mentioned that the host OS is
> CentOS 6.4 (specifically the kernel from RedHat RDO). I googled and
> found that it may not have gre tunneling support. Is there anyone who
> has successfully set up gre with RDO's kernel or it is just can not be
> done and I should use the VLAN.
>
> As Aaron suspected, there are errprs in the OVS agent log:
>
> system at ovs-system: failed to add gre-3 as port: Address family not
> supported by protocol
>
> More details below
>
> Any pointer will be highly appreciated!
>
> Haitao
> ======================================
> Here are some outputs on my compute node (.46, .42 is the control node
> and .44 is the network node):
>
>
> # ovs-vsctl show
> 1d554b19-2a2b-493d-a123-0efb0aabc7d1
>     Bridge br-int
>         Port br-int
>             Interface br-int
>                 type: internal
>         Port "qvo8108425f-ef"
>             tag: 1
>             Interface "qvo8108425f-ef"
>         Port patch-tun
>             Interface patch-tun
>                 type: patch
>                 options: {peer=patch-int}
>     Bridge br-tun
>         Port br-tun
>             Interface br-tun
>                 type: internal
>         Port "gre-3"
>             Interface "gre-3"
>                 type: gre
>                 options: {in_key=flow, out_key=flow,
> remote_ip="10.18.250.44"}
>         Port "gre-4"
>             Interface "gre-4"
>                 type: gre
>                 options: {in_key=flow, out_key=flow,
> remote_ip="10.18.250.42"}
>         Port patch-int
>             Interface patch-int
>                 type: patch
>                 options: {peer=patch-tun}
>     ovs_version: "1.10.0"
>
> # ovs-ofctl dump-ports br-tun
> OFPST_PORT reply (xid=0x2): 2 ports
>   port  1: rx pkts=50, bytes=3300, drop=0, errs=0, frame=0, over=0, crc=0
>            tx pkts=0, bytes=0, drop=0, errs=0, coll=0
>   port LOCAL: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
>            tx pkts=140, bytes=9800, drop=0, errs=0, coll=0
>
> # uname -r
> 2.6.32-358.111.1.openstack.el6.x86_64
>
> # modinfo openvswitch
> filename:
>
> /lib/modules/2.6.32-358.111.1.openstack.el6.x86_64/extra/openvswitch/openvswitch.ko
> version:        1.10.0
> license:        GPL
> description:    Open vSwitch switching datapath
> srcversion:     480D55A9BB0E8B000E32010
> depends:
> vermagic:       2.6.32-358.111.1.openstack.el6.x86_64 SMP mod_unload
> modversions
> parm:           vlan_tso:Enable TSO for VLAN packets (int)
>
> # tail ovs-vswitchd.log
>
> 2013-07-09T23:28:18Z|00002|reconnect|INFO|unix:/var/run/openvswitch/db.sock:
> connecting...
>
> 2013-07-09T23:28:18Z|00003|reconnect|INFO|unix:/var/run/openvswitch/db.sock:
> connected
> 2013-07-09T23:28:18Z|00004|bridge|INFO|bridge br-int: added interface
> patch-tun on port 1
> 2013-07-09T23:28:18Z|00005|bridge|INFO|bridge br-tun: added interface
> patch-int on port 1
> 2013-07-09T23:28:18Z|00006|dpif|WARN|system at ovs-system: failed to add
> gre-3 as port: Address family not supported by protocol
> 2013-07-09T23:28:18Z|00007|dpif|WARN|system at ovs-system: failed to add
> gre-4 as port: Address family not supported by protocol
> 2013-07-09T23:28:18Z|00008|bridge|INFO|bridge br-int: using datapath
> ID 0000dacb49a63448
> 2013-07-09T23:28:18Z|00009|connmgr|INFO|br-int: added service
> controller "punix:/var/run/openvswitch/br-int.mgmt"
> 2013-07-09T23:28:18Z|00010|bridge|INFO|bridge br-tun: using datapath
> ID 00009a14eee01941
> 2013-07-09T23:28:18Z|00011|connmgr|INFO|br-tun: added service
> controller "punix:/var/run/openvswitch/br-tun.mgmt"
> 2013-07-09T23:28:18Z|00012|bridge|INFO|ovs-vswitchd (Open vSwitch) 1.10.0
> 2013-07-09T23:28:28Z|00013|memory|INFO|7848 kB peak resident set size
> after 10.0 seconds
> 2013-07-09T23:28:28Z|00014|memory|INFO|ports:5 rules:11
> 2013-07-09T23:28:28Z|00015|ofproto|INFO|br-int: 2 flow_mods in the 4 s
> starting 10 s ago (1 adds, 1 deletes)
> 2013-07-09T23:28:28Z|00016|ofproto|INFO|br-tun: 5 flow_mods in the 3 s
> starting 10 s ago (5 adds)
> 2013-07-09T23:53:25Z|00017|netdev|WARN|failed to set flags for network
> device patch-int: Operation not supported
>
> On Tue, Jul 9, 2013 at 8:59 PM, Aaron Rosen <arosen at nicira.com> wrote:
> > I'd check the quantum openvswitch agent log files. I'd guess the reason
> this
> > isn't working is because your kernel isn't using the openvswitch kernel
> > module that has tunnel support.
> >
> > Aaron
> >
> >
> > On Tue, Jul 9, 2013 at 9:19 AM, Haitao Jiang <jianghaitao at gmail.com>
> wrote:
> >>
> >> I just set up a multi-node Grizzly release 2013.2 with 1 controller
> >> node, 1 network node and 1 compute node. I use GRE tunneling.
> >>
> >> I create one VM on the compute node and was not able to ssh to it using
> >> netns.
> >>
> >> One thing I noticed is that on my compute node, I do not have br-int
> >> and br-tun in the list, nor do I find any GRE tunnels. Am I supposed
> >> to create the GRE tunnels manually or they should be set up
> >> automatically by Quantum? Any idea or suggestion to make it work?
> >>
> >> Thanks in advance!
> >>
> >> ------ Compute node --------
> >> -- /etc/quantum/plugins/openvswitch/ovs_quantum_plugin.ini  --
> >> tunnel_id_ranges=1:1000
> >> integration_bridge=br-int
> >> tunneling_bridge=br-tun
> >> tenant_network_type=gre
> >> enable_tunneling=True
> >> local_ip = <host IP>
> >>
> >> # brctl show
> >> bridge name     bridge id               STP enabled     interfaces
> >> qbr5a9800b9-26          8000.5242b197c3d3       no
> >> qvb5a9800b9-26
> >>                                                         tap5a9800b9-26
> >> virbr0          8000.525400198a10       yes             virbr0-nic
> >>
> >> # ovs-vsctl show
> >> 1d554b19-2a2b-493d-a123-0efb0aabc7d1
> >>     Bridge br-tun
> >>         Port patch-int
> >>             Interface patch-int
> >>                 type: patch
> >>                 options: {peer=patch-tun}
> >>         Port br-tun
> >>             Interface br-tun
> >>                 type: internal
> >>     Bridge br-int
> >>         Port br-int
> >>             Interface br-int
> >>                 type: internal
> >>         Port patch-tun
> >>             Interface patch-tun
> >>                 type: patch
> >>                 options: {peer=patch-int}
> >>         Port "qvo5a9800b9-26"
> >>             tag: 1
> >>             Interface "qvo5a9800b9-26"
> >>     ovs_version: "1.10.0"
> >>
> >> ------------ network node ---------------
> >> # brctl show
> >> bridge name     bridge id               STP enabled     interfaces
> >>
> >> # ovs-vsctl show
> >> b9f0e822-cfc1-4b70-ac5b-abc4e5c258a4
> >>     Bridge br-int
> >>         Port br-int
> >>             Interface br-int
> >>                 type: internal
> >>         Port "tap9536e146-c2"
> >>             Interface "tap9536e146-c2"
> >>     Bridge br-ex
> >>         Port br-ex
> >>             Interface br-ex
> >>                 type: internal
> >>     ovs_version: "1.10.0"
> >>
> >> _______________________________________________
> >> Mailing list: https://launchpad.net/~openstack
> >> Post to     : openstack at lists.launchpad.net
> >> Unsubscribe : https://launchpad.net/~openstack
> >> More help   : https://help.launchpad.net/ListHelp
> >
> >
>
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