[Openstack] [OpenStack] Second Public IP for VM on Another Public Network does not work properly

Brian Haley brian.haley at hpe.com
Thu Aug 18 20:11:35 UTC 2016

On 08/17/2016 07:40 PM, Neil Jerram wrote:
> On Wed, Aug 17, 2016 at 7:35 PM Brian Haley <brian.haley at hpe.com
> <mailto:brian.haley at hpe.com>> wrote:
>     Is a cloud datacenter going to have multiple link types?  I doubt it.  And
>     having two VMs would be easier anyways as there are probably other things
>     you'reha
>     going to tune.
> Yes, I think so.  I'm currently working on an OpenStack customer deployment
> where they want each instance to have an additional NIC for 'management' access
> into and out from that instance; and there is a correspondingly separate
> provider network for 'management' purposes between the compute hosts.  In
> general, when an instance has multiple NICs, it needs somehow to arrange that it
> sets up only one default route, through one of those NICs, and that non-default
> routes are used to direct traffic to specific destinations through the other NICs.

So people are re-creating their legacy setups, right down to the "iLO management 
network", sigh :)  They do know there is a noVNC answer to get a console:


> (FWIW, I also submitted a proposal to talk about this in Barcelona: "Routed
> (Calico) networking with ECMP, dual fabric planes and data/management separation".)

I'll definitely come and see it if it's accepted Neil.  I guess speed 
designations will be the next thing added to the Network model...


More information about the Openstack mailing list