The IPv4 address swamp: The new normal

1 day ago (blog.apnic.net)

Setting aside the address scarcity issue, how is IPv6 going to simplify the routing table? If anything, it would just be an explosion of the number of addresses?

I mean a million is objectively a large number if it's all on paper, but to me, that's not a particularly large data set for talking about the entire freaking internet.

And how cheap of a SOC can handle that in memory? A better question might be to even make a system on a chip that couldn't handle that memory?

  • It's not just any memory. When it comes to core infrastructure routers those routes need to fit into specialized and expensive CAM (Content Addressable Memory) to do the lookups in hardware. And on every single one.

  • The issue is; in the default free zone, every peer which gives you a full table, gives you 1 million routes. Core infrastructure is not getting refreshed every 5 year, I have heard so...

  • There theory might be that an organisation would end up advertising a single prefix, rather than whatever they have now (say 40 networks with various prefixes).