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User Manual for the NETGEAR 7300S Series Layer 3 Managed Switch Software
Glossary C-9
202-10088-01, March 2005
GMRP
See “GARP Multicast Registration Protocol” on page 8.
GVD
GARP VLAN Database.
GVRP
See “GARP VLAN Registration Protocol” on page 8.
H
Half-duplex
A system that allows packets to transmitted and received, but not at the same time. Contrast with
full-duplex.
hop count
The number of routers that a data packet passes through on its way to its destination.
I
ICMP
See “Internet Control Message Protocol” on page 10.
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 10.
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 10 for more information.