[Queens][neutron] multiple networks with same vlan id

Ignazio Cassano ignaziocassano at gmail.com
Sat Feb 8 17:56:31 UTC 2020

Many thanks.

Il Sab 8 Feb 2020, 18:11 CHANU ROMAIN <romain.chanu at univ-lyon1.fr> ha

> Hello,
> In the case of Openstack the vlan driver permits to isolate each project's
> layer 2. This way each project's L3 can overlaps without any problem. You
> can create many L3 segments within only one VLAN ID.
> I do not use vcenter but for old ESXi it was "possible to create" many
> vswitches whom contains same vlan ID, but this is very different and vmware
> misuses term of switch.
> Best regards,
> Romain
> .
> ------------------------------
> *From:* Ignazio Cassano <ignaziocassano at gmail.com>
> *Sent:* Saturday, February 8, 2020 3:55 PM
> *To:* openstack-discuss
> *Subject:* [Queens][neutron] multiple networks with same vlan id
> Hello, I trying to create multiple networks with the same vlan id and
> different address but it is impossibile because neutron returns vlan id is
> already present.
> I tried with success on vcenter and it works.
> On openstack I can create more subnets with different adresses under the
> same vlan id, but instances receive static routes from dhcp for all subnets.
> Any workaround ?
> I am also trying with segments but they do not seem to fit my case.
> Regards
> Ignazio
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