diff --git a/OVERVIEW.md b/OVERVIEW.md index 6eafc8d..acd0de5 100644 --- a/OVERVIEW.md +++ b/OVERVIEW.md @@ -1,17 +1,16 @@ # Timeline -* 1972 Arpanet rolled out +* 1972 ARPANET rolled out * 1981 TCP/IP rolled out * 1992 CIDR developed -The original IPv4 address space was a 32 bit "address extension" to the arpanet +The original IPv4 address space was a 32 bit "address extension" to the ARPANET address space, which only supported 256 nodes. We carved up the world into into class A, class B, class C, class D (multicast), and class E (reserved). It seemed an eminently good division at the time. By 1989, however, it was obvious that these divisions were straining at the seams, and CIDR was developed to fix it. - * 1994 IPv6 started * 2012 IPv6 rollout started