SMC Networks 1000 - Manual (Page 56)

G
LOSSARY
Glossary-4
IEEE 802.3u
Defines CSMA/CD access method and physical layer specifications
for 100BASE-TX Fast Ethernet.
IEEE 802.3x
Defines Ethernet frame start/stop requests and timers used for
flow control on full-duplex links.
IEEE 802.3z
Defines CSMA/CD access method and physical layer specifications
for 1000BASE Gigabit Ethernet.
IGMP Snooping
Listening to IGMP Query and IGMP Report packets transferred
between IP Multicast Routers and IP Multicast host groups to
indentify IP Multicast group members.
LAN Segment
Separate LAN or collision domain.
Layer 3
Network layer in the ISO 7-Layer Data Communications Protocol.
This layer handles the routing functions for data moving from one
open system to another.
LED
Light emitting diode used for monitoring a device or network
condition.
Link Segment
Length of twisted-pair or fiber cable joining a pair of repeaters or a
repeater and a PC.