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[Xen-users] queries w.r.t xen networking

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Subject: [Xen-users] queries w.r.t xen networking
From: "Bala Subramanyam" <sbala@xxxxxxxxxx>
Date: Wed, 09 Apr 2008 08:06:15 -0600
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Hi All

I am a beginner with XEN and am trying out configuring xen  in the modes of 
Few queries regarding xen networking 

Query #1
As per the documentation I could configure the corresponding modes by enabling 
the scripts to configure the bridged/routed/NAT mode and my query is can we 
have a mixed mode support in XEN (  some of the other available commercial 
hypervisors support them )i.e A n/w where some VMs are part of one network 
which communicate in bridged mode and on the same box there are some other VMs 
which are in the routed mode on a different n/w  and now we want to ping across 
the networks

Apart from xend-config.sxp how can we know what is the mode of existing 
communication is it bridged or routed or NAT  , I checked the "brctl show"  but 
it shows the same info even in routed mode (or did I go terribly wrong 
configuring it  :(   )

Query # 3
Accidentally I  uncommented  both the scripts in xend-config.sxp i.e the file 
had both the modes enabled 

network-script network-bridge
vif-script vif-bridge

network-script network-route
vif-script    vif-route 

but to my suprise I saw that while restarting xend , it didnt report any errors 
I checked the xendlog file by enabling the debug mode and found it to be in 
bridged mode ( Is  this a defined behaviour ) 

Any pointers on detailed info of xen networking would be of great help 

Thanks  in advance 


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