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@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@ovs-system: failed to add
gre-3 as port: Address family not supported by protocol
2013-07-09T23:28:18Z|00007|dpif|WARN|system@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 <aro...@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 <jianghai...@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"
>>
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