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

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Ian Pratt writes ("RE: [Xen-devel] [PATCH]: xl: use libuuid to generate random 
UUID's"):
> 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.

VM uuids are not stable in xend nor xl.  Perhaps xl should hash the VM
name, which is stable and supposedly unique.

Ian.

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