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From David Comerford <davest...@gmail.com>
Subject Re: Management addresses on XenServers
Date Thu, 03 Oct 2013 21:27:51 GMT
Ah it was the virtual routers I was thinking of.
Cool, thanks Geoff :)

Best regards,
David Comerford
------------------------
Tel: +353 87 1238295
Email: davestyle@gmail.com
Website: http://dave.ie
GPG key: http://gpg.dave.ie


On 3 October 2013 22:11, Geoff Higginbottom <
geoff.higginbottom@shapeblue.com> wrote:

> David,
>
> Link local is so that the management server can talk to them, and the
> private (management) address is so they can talk to the management server.
>
> The Virtual Router has no private address so the standard way that
> CloudStack management servers talk to all system VMs is via link local.
>
> SSVM and CPVM have a private address and they use this when thy initiate
> comms to the management server, using the address specified in the 'host'
> global setting' which should be a load balanced ip if you have more than
> one management server.
>
> The exception to this is if using VMware which does not have a link local
> network, in which case the equivalent VIF on the vm is allocated a private
> ip range, but of course basic networking does not work with VMWare so we
> can ignore that for now.
>
> Regards
>
> Geoff Higginbottom
> CTO / Cloud Architect
>
>
> D: +44 20 3603 0542<tel:+442036030542> | S: +44 20 3603 0540<tel:
> +442036030540> | M: +447968161581<tel:+447968161581>
>
> geoff.higginbottom@shapeblue.com<mailto:geoff.higginbottom@shapeblue.com>
> | www.shapeblue.com
>
> ShapeBlue Ltd, 53 Chandos Place, Covent Garden, London, WC2N 4HS
>
>
>
> On 3 Oct 2013, at 22:02, "David Comerford" <davestyle@gmail.com<mailto:
> davestyle@gmail.com>> wrote:
>
> Hi,
>
> Why do system VM's on XenServer in a Basic networking zone require a
> link-local address AND a private IP from the management range?
>
> Best regards,
> David Comerford
> ------------------------
> Tel: +353 87 1238295
> Email: davestyle@gmail.com<mailto:davestyle@gmail.com>
> Website: http://dave.ie
> GPG key: http://gpg.dave.ie
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