Switch User's Manual

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last member query interval (LMQI)
The time between when the last IGMP member
leaves the group and the stream stops.
latency
The time between when a node sends a
message and receipt of the message by another
node; also referred to as propagation delay.
Layer 2 (L2)
The Data Link Layer of the Open System
Interconnection (OSI) model. Examples of Layer
2 protocols are Ethernet and Frame Relay.
Layer 3 (L3)
The Network Layer of the OSI model. Examples
of Layer 3 protocols are Internet Protocol (IP)
and Internetwork Packet Exchange (IPX).
light emitting diode (LED)
A semiconductor diode that emits light when a
current passes through.
Lightweight Directory Access Protocol (LDAP)
A network protocol designed to work on TCP/IP
stacks to extract information from a hierarchical
directory such as X.500.
line card
A card that goes into slots 1 to 4 or 7 to 10 of a
Nortel Ethernet Routing Switch 8600 chassis.
The card provides network connectivity for
various media (Layer 0) and protocol types. A
card is also called a module.
Link Aggregation Control Protocol (LACP)
A protocol that exists between two bridge
endpoints.
Link Aggregation Control Protocol Data Units
(LACPDUs)
link aggregation group (LAG)
A group that increases the link speed beyond the
limits of any one single cable or port, and also
increases the redundancy for higher availability.
Nortel Ethernet Routing Switch 8600
Terminology
NN46205-102 01.01 Standard
30 May 2008
Copyright © 2008 Nortel Networks
.