[Openstack] ml2 vlan provider network help

Martinx - ジェームズ thiagocmartinsc at gmail.com
Wed Oct 15 23:44:53 UTC 2014


Awesome!!   :-D

Same here, I'm using tagged VLANs, one for each tenant...

Each tenant here have 1 "net", and 2 "subnets" (IPv4 and IPv6).

Cheers!
Thiago

On 15 October 2014 18:07, Brandon Sawyers <brandor5 at gmail.com> wrote:

> As a follow-up to my post:
>
> We figured out was going on today. Nothing exciting, our test vlan we were
> using was not configured properly by the network team. It was untagged
> instead of being tagged. Once that was fixed, everything began working as
> we expected it to.
>
> Cheers!
> Brandon
>
> On Tue, Oct 14, 2014 at 11:00 AM, Brandon Sawyers <brandor5 at gmail.com>
> wrote:
>
>> Hello everyone:
>>
>> I believe that I have a correct config for using vlan provider networks
>> in place (Thanks Thiago!), but my instances fail to ping other systems on
>> the vlan. A quick description of what I'm trying to accomplish: My team
>> does not control the network, so we wish to use the in place vlans in our
>> instances for access to the world. We can't use dhcp on these vlans either.
>>
>> Here are the steps I've taken to attempt to troubleshoot this issue:
>>
>> -- Plumbed vlans on controller (neutron lives here) and computes. Using
>> tcpdump I can see the vlan traffic from both nodes.
>> -- Create instance with a single interface on the vlan provider network.
>> -- Create appropriate security rules to allow ping/ssh.
>> -- Start ping from instance to external host on the vlan.
>> -- Start ping from external host to my instance.
>> -- Using tcpdump listen at the following locations... (tcpdump -qnni
>> <interface> host <instance_ip> or host <external_server_ip>)
>> --- tap interface for the guest: I see arps from my guest requesting the
>> external server mac.
>> --- source bridge of ovs created bridge for guest: I see arps from my
>> guest requesting the external server mac.
>> --- br-int integration bridge: I see arps from my guest requesting the
>> external server mac.
>> --- int-br-eth3 (part of veth pair to connect to actual bridge): I see
>> arps from both my instance and the external host requesting mac addresses
>> for each other.
>> --- phy-br-eth3 (part of veth pair to connect to actual bridge): I see
>> arps from both my instance and the external host requesting mac addresses
>> for each other.
>> --- br-eth3 (actual bridge I created for openstack use): I see arps from
>> both my instance and the external host requesting mac addresses for each
>> other.
>> --- eth3:  I see arps from both my instance and the external host
>> requesting mac addresses for each other.
>> -- Nothing in the logs look incorrect.
>> -- GRE tunnels for private networks work without issue.
>>
>> I've posted some output from my setup at http://pastebin.com/Mf2qMTSM.
>>
>> Thanks for the help!
>> Brandon
>>
>>
>
> _______________________________________________
> 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
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack/attachments/20141015/647f2cf8/attachment.html>


More information about the Openstack mailing list