By the end of this chapter, you should know and be able to explain the following:
The necessity of having IPv6 as the successor protocol of IPv4
The main differences between IPv4 and IPv6
A brief overview of the IPv6 unicast routing protocols
How to carry IPv6 across an MPLS network
What 6PE stands for and how it operates
What 6VPE stands for and how it operates
When you have finished this chapter, you will be able to explain the IPv6 protocol in a few sentences. You will also be able to choose the best-suited solution for an MPLS network transporting IPv6 across it.
IPv6 is the successor to IPv4. You might think that it should be IPv5, but that one ended up as an experiment only and was dropped. IPv6 ...