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> El 29/7/2015, a las 8:47, Karl Pielorz <kpielorz_...@tdx.co.uk> escribió:
> Hi All,
> A while ago I ran into an issue with FreeBSD + Xen and networking (where
> FreeBSD PVHVM domU's can't "route" traffic to/from other domU's
> (fbsd/linux/windows) - e.g. as a default gateway).
> I seem to have run into what appears to be another network issue now -
> XenServer 6.5-SP1 +hotfixes, with FreeBSD 10.1-p4 (as PVHVM), and OpenVPN
> Everything 'works OK' - but the performance is pretty poor. Most noticeable -
> if you have a browser open fetching pages via the VPN - the pages arrive very
> slowly, and any ssh sessions etc. are instantly put on a 'go slow', you also
> start getting ping timeouts when pinging hosts the other side of the VM/VPN
> until the pages are fetched.
> Swap back to a bare metal system (on the same networks) - it works fine,
> switch back over to the VM - and again, performance is lousy.
> The host running OpenVPN isn't really under any load (it's only job is
> running OpenVPN) - nor is it's XenServer.
> If I connect to another OpenVPN host which is running on an HVM FreeBSD 9.1
> domU - performance is indistinguishable from the bare metal (as you'd expect
> considering the relatively low volumes of traffic over the VPN etc.)
> Can anyone suggest any fixes / where to look to try and keep it as PVHVM, and
> get the performance back? - as we've already got a collection of HVM machines
> (to work round the other network problem) - which I don't really want to add
> to, as they're not agile :(
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