 Chaosnet can be regarded as a contemporary of both the PUP protocols invented by PARC, and the Internet Protocol (IP), and was recognized as one of the other network classes (other than "IN" and "HS") in the Domain Name System.BIND uses a built-in pseudo-top-level-domain in the "CHAOS class" for retrieving information about a running DNS server.The Chaosnet protocol identifies hosts by 16-bit addresses, 8 bits of which identify the subnet, 8 bits of which identify the host within the subnet.