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Re: [Xen-devel] [PATCH]: xl: use libuuid to generate random UUID's



 On 08/04/2010 07:19 PM, Ian Pratt wrote:
The best approach is to generate locally administered MAC addresses hence 
giving us 46 bits of freedom rather than XenSource registered OUI addresses 
which have just 24 bits -- collisions will be *much* less likely. Further, it's 
best not to generate random addresses every time, but to derive the MAC address 
from a good hash of the VM UUID and the NIC number so that they are 
deterministic.

Yes! I've been doing that manually (where my hash is '+'), but its irritating to keep doing over and over.

    J

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