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Yes br-tun is there.  here is the o/p of ovs-ofctl.

-
root at havana:~# ovs-ofctl show br-tun
OFPT_FEATURES_REPLY (xid=0x2): dpid:00004e6501755448
n_tables:254, n_buffers:256
capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP
actions: OUTPUT SET_VLAN_VID SET_VLAN_PCP STRIP_VLAN SET_DL_SRC SET_DL_DST
SET_NW_SRC SET_NW_DST SET_NW_TOS SET_TP_SRC SET_TP_DST ENQUEUE
 1(patch-int): addr:42:9d:7c:13:4b:58
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-tun): addr:4e:65:01:75:54:48
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0
--

Thanks
Paras.


On Sat, Nov 9, 2013 at 3:44 AM, Igor Cardoso <igordcard at gmail.com> wrote:

> I guess br-tun is created in a single node as well, someone correct me if
> I'm wrong please.
> What is the output of ovs-ofctl show br-tun ?
>
>
> On 9 November 2013 02:35, Paras pradhan <pradhanparas at gmail.com> wrote:
>
>> Yes gre . all (controller plus compute) in a single node though.
>> On Nov 8, 2013 5:17 PM, "Igor Cardoso" <igordcard at gmail.com> wrote:
>>
>>> Are you using GRE?
>>>
>>>
>>> On 8 November 2013 22:48, Paras pradhan <pradhanparas at gmail.com> wrote:
>>>
>>>> use_namespace is set to true, iproute is up to date from 12.04 LTS.
>>>>
>>>> This is what I see when tcpdump
>>>> -
>>>>
>>>> root at havana:/home/localadmin# tcpdump -i qvo6157a9aa-76
>>>> tcpdump: WARNING: qvo6157a9aa-76: no IPv4 address assigned
>>>> tcpdump: verbose output suppressed, use -v or -vv for full protocol
>>>> decode
>>>> listening on qvo6157a9aa-76, link-type EN10MB (Ethernet), capture size
>>>> 65535 bytes
>>>> 16:46:39.006180 IP6 fe80::40fa:38ff:fee3:a3fa > ff02::16: HBH ICMP6,
>>>> multicast listener report v2, 1 group record(s), length 28
>>>> 16:46:39.784902 IP6 :: > ff02::16: HBH ICMP6, multicast listener report
>>>> v2, 1 group record(s), length 28
>>>> 16:46:39.824273 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP,
>>>> Request from fa:16:3e:9a:38:1e (oui Unknown), length 280
>>>> 16:46:39.933463 IP6 :: > ff02::1:ff9a:381e: ICMP6, neighbor
>>>> solicitation, who has fe80::f816:3eff:fe9a:381e, length 24
>>>> 16:46:40.325389 IP6 :: > ff02::16: HBH ICMP6, multicast listener report
>>>> v2, 1 group record(s), length 28
>>>> 16:46:40.934808 IP6 fe80::f816:3eff:fe9a:381e > ip6-allrouters: ICMP6,
>>>> router solicitation, length 16
>>>> 16:46:42.833239 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP,
>>>> Request from fa:16:3e:9a:38:1e (oui Unknown), length 280
>>>> 16:46:44.936871 IP6 fe80::f816:3eff:fe9a:381e > ip6-allrouters: ICMP6,
>>>> router solicitation, length 16
>>>> 16:46:45.840668 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP,
>>>> Request from fa:16:3e:9a:38:1e (oui Unknown), length 280
>>>> 16:46:48.945478 IP6 fe80::f816:3eff:fe9a:381e > ip6-allrouters: ICMP6,
>>>> router solicitation, length 16
>>>> 16:47:00.542029 IP 0.0.0.0 > all-systems.mcast.net: igmp query v2
>>>> 16:47:00.542036 IP6 fe80::d894:29ff:fe08:5ec > ip6-allnodes: HBH ICMP6,
>>>> multicast listener querymax resp delay: 10000 addr: ::, length 24
>>>> --
>>>>
>>>> Thanks!
>>>> Paras.
>>>>
>>>>
>>>>
>>>> On Fri, Nov 8, 2013 at 4:26 PM, Rami Vaknin <rvaknin at redhat.com> wrote:
>>>>
>>>>>  On 11/09/2013 12:18 AM, Paras pradhan wrote:
>>>>>
>>>>> dnsmaq is running, ip netns doesn't return anything.
>>>>>
>>>>>
>>>>> Empty output from "ip netns" can be either not using namespaces (run
>>>>> grep "use_namespaces /etc/neutron/l3_agent.ini" to find out) or using wrong
>>>>> iproute package.
>>>>> Could you please also check what does tcpdump report? could you see
>>>>> the discover on the dhcp nic (when using ovs it's a tapxxxxxxxx-xx nic)?
>>>>> could you see an offer sent from that nic?
>>>>>
>>>>>
>>>>>
>>>>>  -Paras.
>>>>>
>>>>>
>>>>> On Fri, Nov 8, 2013 at 4:07 PM, Rami Vaknin <rvaknin at redhat.com>wrote:
>>>>>
>>>>>>  On 11/08/2013 11:35 PM, Paras pradhan wrote:
>>>>>>
>>>>>> Hi,
>>>>>>
>>>>>>  I gpt an instance UP but it doesnot get an IP address. neutron
>>>>>> agent-list lists DHCP agent happy. While booting I see cirros stuck at
>>>>>> sending discover... multiple times. dnsmasq process is running. how do i
>>>>>> debug?
>>>>>>
>>>>>>
>>>>>>  I would start with:
>>>>>> * ps -efl | grep dnsmasq | grep -v grep - to verify that the dnsmasq
>>>>>> process is running, you can also check the conf file appeas in this output
>>>>>> * ip netns - to get the list of namespaces
>>>>>> * ip netns exec <the_right_dhcp_namespace_name> tcpdump -i any ... -
>>>>>> to look for the dhcp offer or arp issues
>>>>>> * ping each other - instance to dhcp address, and vice versa (the
>>>>>> second one should be done from within the namespace)
>>>>>>
>>>>>>
>>>>>>  Thanks
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>>>>> Post to     : openstack at lists.openstack.org
>>>>>> Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Rami Vaknin, QE @ Red Hat, TLV, IL.
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Rami Vaknin, QE @ Red Hat, TLV, IL.
>>>>>
>>>>>
>>>>
>>>> _______________________________________________
>>>> Mailing list:
>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>>> Post to     : openstack at lists.openstack.org
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>>>>
>>>>
>>>
>>>
>>> --
>>> http://igordcard.blogspot.com
>>>
>>
>
>
> --
> http://igordcard.blogspot.com
>
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