----- Oryginalna wiadomość ----- > Od: "Brian Haley" <[email protected]> > Do: "openstack" <[email protected]> > Wysłane: środa, 17 sierpnia, 2016 20:34:11 > Temat: Re: [Openstack] [OpenStack] Second Public IP for VM on Another Public > Network does not work properly
> On 08/17/2016 01:54 PM, Piotr Baranowski wrote: >> ----- Oryginalna wiadomość ----- >>> Od: "Brian Haley" <[email protected]> >>> Do: [email protected] >>> Wysłane: środa, 17 sierpnia, 2016 18:53:47 >>> Temat: Re: [Openstack] [OpenStack] Second Public IP for VM on Another Public >>> Network does not work properly >> >>> On 08/17/2016 05:08 AM, Ludwig Tirazona wrote: >>>> Hello, >>>> >>>> >>>> Has anybody had this experience/problem as well? >>> >>> I'm not sure I'd expect this to work, here is just one reason. >> >> Brian, >> >> Ever heard of policy based routing? > > >> You can have multiple outbound links and use them when your traffic meets >> some >> particular criteria. > > Yes, and that was what I was alluding to in order to make packets go out the > correct interface based on the source IP in the packets. > >> One simple example: >> >> You have an expensive low latency link and a high latency cheap one. >> You may use policy routing to automatically select which route to use. > > 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're > going to tune. I just happen to manage an OpenStack DC with 2 separate uplinks and third one to be attached soon. Never say never. :-) > > TL;DR It makes sense to have multiple uplinks. > > A cloud provider is probably going to have multiple links to the Internet, and > they'll be able to deal with one being down without any action on the part of > a > tenant. > > I can only guess the OP wants to do this because their existing architecture > is > doing something like it, but I don't know. > > -Brian -- Piotr _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : [email protected] Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
