User Manual for the NETGEAR 7200 Series Layer 2 Managed Switch Software

GVRP

See “GARP VLAN Registration Protocol” on page 7.

H

Half-duplex

A system that allows packets to transmitted and received, but not at the same time. Contrast with full-duplex.

I

IEEE

Institute of Electrical and Electronics Engineers. This American organization was founded in 1963 and sets standards for computers and communications.

IETF

Internet Engineering Task Force. An organization responsible for providing engineering solutions for TCP/ IP networks. In the network management area, this group is responsible for the development of the SNMP protocol.

IGMP

See “Internet Group Management Protocol” on page 8.

IGMP Snooping

A series of operations performed by intermediate systems to add logic to the network to optimize the flow of multicast traffic; these intermediate systems (such as Layer 2 switches) listen for IGMP messages and build mapping tables and associated forwarding filters, in addition to reducing the IGMP protocol traffic. See “Internet Group Management Protocol” on page 8 for more information.

Internet Group Management Protocol

IGMP is the standard for IP Multicasting on the Internet. IGMP is used to establish host memberships in particular multicast groups on a single network. The mechanisms of the protocol allow a host to inform its local router, using Host Membership Reports, that it wants to receive messages addressed to a specific multicast group. All hosts conforming to Level 2 of the IP Multicasting specification require IGMP.

IP

See “Internet Protocol” on page 9.

B-8

Glossary

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NETGEAR 7200 Series user manual Half-duplex, Igmp Snooping, Internet Group Management Protocol