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Hi Zhi,

Thanks for the report, comment below.

On 10/27/2016 05:04 AM, zhi wrote:
> Hi, all.
>
>     I installed a devstack in my local environment. All the code from master
> branch. After the installation, I have to show you some problems which I met.
>
>     First of all, I create an external network by this command " neutron
> net-create public --router:external=True --provider:network_type=flat
> --provider:physical_network=public ".
>
>     Secondly, I create a subnet with " subnet_type " by this command " neutron
> subnet-create [net-id] 20.20.20.0/24 <http://20.20.20.0/24> --service-types
> list=true network:router_gateway ".
>
>     At last, I create a router and setting this router's gateway by this command
> " neutron router-gateway-set [router-id] [net-id]".
>
>     Exception happens in Neutron Server, it says "
> HostNotCompatibleWithFixedIps: Host devstack is not connected to a segment where
> the existing fixed_ips on port 0f38ba01-8dd0-43de-92e3-b294bd4ebed8 will
> function given the routed network topology. ".

Subnet service types is new in Newton, and it seems you've found a bug - can you 
file a bug on launchpad for it?

The one thing you might try to get past this is to disable DHCP on these 
subnets, but the error you linked seems different from [1].

-Brian

[1] https://bugs.launchpad.net/neutron/+bug/1636963

>     After I did some research about the exception,  I found this patch[1] was
> adding this exception into neutron repo. I am confused about that. Why setting
> router's gateway will trigger this exception? I don't execute any commands about
> " routed_network ".
>
>     What's wrong ?
>
>     Could someone give some advice about that ? I upload all the network and
> subnets info at here [2]. Detail exception at here [3].
>
>     BTW, what's the meaning of " tags " in network?
>
>     Hope for your reply. :)
>
>
> Thanks
> Zhi Chang
>
>
> [1]. https://review.openstack.org/#/c/346217/3
> [2]. http://paste.openstack.org/show/587157/
> [3]. http://paste.openstack.org/show/587158/
>
>
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