Allied Telesis AT-8202 - Manual (Page 76)

ATM Acronyms and Terms
A-2
an IEEE 802.2 LLC header (called LLC encapsulation). Using CIP, you
can configure hosts and routers within a closed logical IP subnet
(LIS) with the same IP network/subnet number and address mask,
and they communicate with other members of the same LIS over
the ATM network.
Hosts of different IP subnets must communicate via an IP router,
even though they can communicate via a direct VC.
ELAN (emulated LAN) Following the ATM Forum sub-working group LAN emulation
specification, emulated LANs make connection-oriented ATM
networks look like connectionless local area networks.
End point On an ATM network, an end station, server, or internetworking
device connected to the network. End points use either a user-to-
network interface (UNI) for end stations or servers, or a network-to-
network interface (NNI) for switch-to-switch connections.
IISP (interim inter-
switch signaling
protocol) A standardized signaling protocol to enable switched virtual circuits
(SVCs) between switches in a private ATM network using static
routes. Based on UNI 3.1 with optional support for UNI 3.0.
ILMI (interim local
management interface Integrated Local Managment Interface: An ATM Forum defined
interim specification for network management functions between
an end user and a public or private network and between a public
network and a private network. This is based on a limited subset of
SNMP capabilities.
LANE (LAN emulation) The method used by switching equipment to emulate the
characteristics of shared-media LANs, standardized by the ATM
Forum to allow transparent operation of existing LANs and
protocols across ATM. Facilitates the operation of broadcast-
oriented, connectionless networks and employes a server to resolve
addresses between Ethernet and ATM systems. Allows for multicast
services for supporting broadcast traffic when needed and MAC
driver interfaces on ATM stations supporting existing protocols such
as IP, APPN, NetBIOS, and IPX.
LEC (LAN emulation
client) One of the components of LAN emulation, the LEC is an Ethernet
port in a virtual LAN that has its own ATM address.
In LANE, ARP is used to translate and map the MAC addresses to
ATM addresses. When an end station sends a MAC frame to an LEC,
the LEC finds the ATM address of the destination with the help of
the LAN emulation server (LES) and sets up an ATM virtual
connection to the destination using SVC. The MAC traffic is then
sent as an ALL5 PDU with an LLC encapsulation over the established
virtual connection.