On 31 Jan 2014, at 15:26, Alexandru Petrescu <alexandru.petre...@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 The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.
