ATIS Telecom Glossary

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Internet Assigned Numbers Authority (IANA)

An organization, directed by the Internet Architecture Board, that assigns IP numbers and protocol parameters such as port, protocol, and enterprise numbers, and opinions, codes, and types.

Internet assistant

Commercial software, written in HTML, that combines the functions of a file-conversion tool and a Web browser.

Internet Engineering Task Force

One of the task forces (with more than 40 working groups) of the Internet Architecture Board, responsible for solving short-term engineering needs of the Internet.

Internet Group Management Protocol version 2 (IGMP v2)

IGMP v2, as defined in RFC 2236, is an enhancement to the original version of the IGMP protocol that adds “leave” messaging in conjunction with existing “join” messaging. IGMPv2 does not support SSM since the join and leave messages only define the group address and not the source address.

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