Local Area High Speed Networks

I–K

idle

A special signal sent between frames, used with several LAN transmission technologies.

IGMP snooping

Eavesdropping on IGMP messages by bridges to identify the ports that lead to members of a multicast group.

impedance

A measure (in ohms) of the opposition to the flow of electricity down the wire.

independent VLAN learning

The development of a separate filtering table for each VLAN.

ingress rules

The rules used by a switch to assign an incoming frame to a VLAN.

Internet Engineering Task Force (IETF)

A group responsible for defining and implementing the TCP/IP suite of protocols that is used on the Internet.

Internet Group Management Protocol (IGMP)

A protocol that TCP/IP systems use to join and ...