Open Stack

Dear Remo Mattei

I'm using CentOS 6.5 and ML2 plugin.

Best regards

Byeong-Gi KIM


2014-06-16 14:07 GMT+09:00 Remo Mattei <remo at italy1.com>:

> Are you using Ubuntu or red hat? Ml2 or not ?
>
> Inviato da iPhone ()
>
> Il giorno Jun 15, 2014, alle ore 21:08, BYEONG-GI KIM <
> kimbyeonggi at gmail.com> ha scritto:
>
> Dear Yang,
>
> Thank you for the reply.
>
> I've checked the connection between aqrouter and a vm like this way;
>
> 1. ping from qrouter to br-ext in order to identify the external network
> is set correctly: it works fine.
> 2. ping from a vm where locates in an internal network to a qrouter which
> connects with the network: it doesn't work. In detail, I used tcpdump on
> each bridge to check the connection status. The ping (ICMP Request message)
> arrived at br-int/br-tun on the Compute Node successfully. The ping,
> however, could not arrive at br-int/br-tun on the Network Node. The Request
> messsage could arrive at the Ethernet port for Internal Network on the
> Network Node. I also checked the connection by a reverse way; The ping from
> qrouter even could not be delivered to br-int on the Network Node. Of
> course I set up the firewall rule properly...
>
> My Networking set up is GRE and I deployed my openstack testbed
> environment using VMware workstation. I've been trying to deploy two
> external networks using multiple l3 agents, and the multiple l3 agents are
> running on same node (Network Node). The status of the router_interface for
> connection between Internal Network and the corresponding qrouter is shown
> as DOWN on dashboard.
>
> I don't know how to solve this problem. I tried to re-create external
> network/subnet/qrouter according to the
> http://www.gossamer-threads.com/lists/openstack/dev/36353?do=post_view_flat,
> but still doesn't work.
>
> Should the router_id in l3-agent.ini file indicate id which can find 'ip
> netns' on Network Node or indicate id which can find 'neutron router-list'
> on Controller Node? As you know, the ids are a little different;
> qrouter-xxxx or just xxxx
>
> Anyway, the setting up multiple external networks makes me upset now. :(
>
> Best regards
>
> Byeong-Gi Kim
>
>
>
>
> 2014-06-16 11:11 GMT+09:00 Alex Yang <alex890714 at gmail.com>:
>
>> Hi Kim,
>>
>> You should check the firewall rule of the vm at first. Then, If the
>> qrouter and vm are not in the same host, you should check the connection of
>> tunnel between the two host by using ovs-vsctl show.
>> Using tcpdump to inspect the packets in br-ext, br-int is also useful.
>>
>>
>>
>> 2014-06-13 14:51 GMT+08:00 BYEONG-GI KIM <kimbyeonggi at gmail.com>:
>>
>>> Hello.
>>>
>>> I created two external networks using multiple l3 agents by referring to
>>> both
>>> http://docs.openstack.org/admin-guide-cloud/content/adv_cfg_l3_agent_multi_extnet.html
>>> and https://answers.launchpad.net/neutron/+question/236230, and it
>>> seems work fine...
>>>
>>> When I tried to ping from a qrouter, which connects with both an
>>> external network called "external1" and an internal network, to a vm where
>>> located in the internal network, however, the ping could not be sent
>>> successfully.
>>>
>>> The qrouter can ping to br-ex, and another qrouter which connects with
>>> the second external network named "external2" also can ping to br-ex-2. The
>>> problem is that status for connection between each qrouter and internal
>>> network has been "DOWN" instead of "ACTIVE"...
>>>
>>> Did anybody suffer from such problem and solve it? I'd appreciate any
>>> help and comments for solving it.
>>>
>>> Thanks in advance.
>>>
>>> Best regards
>>>
>>> Byeong-Gi KIM
>>>
>>>
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>>>
>>
>>
>> --
>>   杨雨
>>   Email:       alex890714 at gmail.com
>> GitHub:       https://github.com/AlexYangYu
>>  Weibo:       http://www.weibo.com/alexyangyu
>>
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