Question about IPAM tools for v6
Sam.Wilson at ed.ac.uk
Mon Feb 3 12:11:31 CET 2014
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.
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