Cabletron Systems 9A000 manual Glossary, nnn.nnn.nnn.nnn

GLOSSARY

ICMP (Internet Control Message Protocol) - the protocol that handles errors and control messages at the IP layer. ICMP is actually a part of the IP protocol layer. It can generate error messages, test packets, and informational mes- sages related to IP.

IEEE (Institute of Electrical and Electronics Engineers) - the world’s largest technical professional society. Based in the U.S.A., the IEEE sponsors technical conferences, symposia & local meetings worldwide, publishes nearly 25% of the world’s technical papers in electrical, electronics & computer engineering, provides educational programs for its members, and promotes standardiza- tion.

IETF (Internet Engineering Task Force) - a large, open, international commu- nity of network designers, operators, vendors and researchers whose purpose is to coordinate the operation, management and evolution of the Internet to resolve short- and mid-range protocol and architectural issues.

ILMI (Interim Local Management Interface) - the standard that specifies the use of the Simple Network Management Protocol (SNMP) and an ATM man- agement information base (MIB) to provide network status and configuration information.

Interface Data - the unit of information transferred to/from the upper layer in a single interaction across a SAP. Each Interface Data Unit (IDU) controls interface information and may also contain the whole or part of the SDU.

internet - while an internet is a network, the term “internet” is usually used to refer to a collection of networks interconnected with routers.

Internet - (note the capital “I”) the largest internet in the world including large national backbone nets and many regional and local networks world- wide. The Internet uses the TCP/IP suite. Networks with only e-mail connec- tivity are not considered on the Internet.

Internet Addresses - the numbers used to identify hosts on an internet net- work. Internet host numbers are divided into two parts; the first is the net- work number and the second, or local, part is a host number on that particular network. There are also three classes of networks in the Internet, based on the number of hosts on a given network. Large networks are classified as Class A, having addresses in the range 1-126 and having a maximum of 16,387,064 hosts. Medium networks are classified as Class B, with addresses in the range 128-191 and with a maximum of 64,516 hosts. Small networks are classified as Class C, having addresses in the range 192-254 with a maximum of 254 hosts. Addresses are given as dotted decimal numbers in the following format:

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