22 Nov
2021
22 Nov
'21
5:45 a.m.
Mans Nilsson wrote:
Not everyone are Apple, "hp"[0] or MIT, where initial allocation still is mostly sufficient.
The number of routing table entries is growing exponentially, not because of increase of the number of ISPs, but because of multihoming. As such, if entities requiring IPv4 multihoming will also require IPv6 multihoming, the numbers of routing table entries will be same. The proper solution is to have end to end multihoming: https://tools.ietf.org/id/draft-ohta-e2e-multihoming-02.txt
Your reasoning is correct, but the size of the math matters more.
Indeed, with the current operational practice. global IPv4 routing table size is bounded below 16M. OTOH, that for IPv6 is unbounded. Masataka Ohta