Hi vagkaefer,
IPv6 is the second-generation standard protocol of the network layer protocol and is an upgrade version of IPv4. Featuring a simplified header format, sufficient address space, hierarchical address structure, flexible extended header, and an enhanced neighbor discovery (ND) mechanism, IPv6 has a competitive future in the market.
IPv4 has the following disadvantages:
1. The IPv4 address space is insufficient.
2. The backbone router maintains too many routing entries.
3. Address auto-configuration and readdressing cannot be performed easily.
4. Security cannot be guaranteed.
IPv6 solves the problem of IP address shortage and has the following advantages:
1. Easy to deploy.
2. Compatible with various applications.
3. Smooth transition from IPv4 networks to IPv6 networks.
In addition, I did not find public IPv6 performance tests.
I hope it helps!