cloudstack-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Wido den Hollander <>
Subject Re: [Discuss] Getting rid of the Virtual Router (associated downtime)
Date Sat, 13 Feb 2016 16:41:58 GMT

> Op 13 februari 2016 om 10:41 schreef Nux! <>:
> Hello,
> I saw it mentioned somewhere around here in the recent past, but don't recall
> details.
> Has anybody had any interesting ideas? I for one absolutely dread relying on
> the VR, and not because of the VR itself, but for the downtime involved with
> upgrading it.
> At work we've been running a SG zone and it's been rock solid with 100%
> uptime, but the lack of features (multiple network support mainly) is becoming
> more and more pressing.
> Is moving VR functionality down to the hypervisor an option for platforms that
> support this? (Xen, KVM)

Well, I never thought about it very much, but one thing that came to mind is
moving the DHCP part towards the KVM hypervisor.

Libvirt supports networks for example:

It also allows for DHCP reservations. Under water libvirt will simply spawn
dnsmasq to perform the DHCP.

This combines nicely with the network filtering being performed by libvirt:

So in short:
- Use libvirt for the DHCP on the hypervisor
- Also use libvirt for the security grouping


> Lucian
> --
> Sent from the Delta quadrant using Borg technology!
> Nux!

View raw message