Re: [Xen-users] Xen 3 vs Xen 4

["Niels Dettenbach (Syndicat IT&Internet)" <nd@xxxxxxxxxxxx>]

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FiFtHeLeMeNt <farzad.fallah@xxxxxxxxx> schrieb:


>Yes , my experience is the same. I did the upgrade and after upgrade
>the
>network settings was messed up and server lost its network
>connectivity. so
>I downgraded to branch 3 again.

After several changes within the "auto networking" and naming conventions in 
xen 3 versions with xen 4 this part was widely "cleand up". It is fact that 
configuring the networking by the used Dom0 OS / distribution is more reliable 
but even more easy in the many different existing as thinkable setups - or make 
them just possible...

Before you upgrade your productive machines from xen 3 to xen 4 you should plan 
your new networking and try it with xen 3 and disabled auto-bridge/auto-routing 
scripts.

How your OS i.e. lets you configure new bridges should be well documented. If 
your prefer to do that by hand, use the brctl tool to create a new bridge and 
"connect" ethernet port(s) to it.

Xen just has to know how your bridge is called (if you use just one as before i 
assume). In your DomU configs you should name the bridge too within vif. See 
i.e. in the howtos how todo that - there are manies out att.

If anything goes correct under Xen 3 then you should be able to switch to 4 
without further networking problems.


good luck,

Niels.
- --
Niels Dettenbach
Syndicat IT&Internet
http://www.syndicat.com
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