Question about IPAM tools for v6

[Sam Wilson]

On 31 Jan 2014, at 15:26, Alexandru Petrescu <alexandru.petrescu at cea.fr> wrote:

> Speaking of scalability - is there any link layer (e.g. Ethernet) that supports 2^64 nodes in the same link?  Any deployed such link? I doubt so.
> 
> I suppose the largest number of nodes in a single link may reach somewhere in the thousands of nodes, but not 2^64.


Let me de-lurk and make the obvious point that using standard Ethernet addressing would limit the number of nodes on a single link to 2^47, and that would require every unicast address assigned to every possible vendor.  Using just the Locally Administered addresses would limit you to 2^46.

Sam
-- 
Sam Wilson
Communications Infrastructure Section, IT Infrastructure
Information Services, The University of Edinburgh
Edinburgh, Scotland, UK



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