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Glossary
202 Avaya P460 Reference Guide
ILMI
Interim Local Management Interface. Specification developed by the ATM Forum
for incorporating network management capabilities into the ATM UNI.
IMAP
Internet Message Access Protocol. A protocol for retrieving E-mail messages. IMAP
uses SMTP for communication between the E-mail client and server.
In-Band
Transmission of auxiliary information, such as management messages, using the
same frequencies or channels normally used for information transfer.
Internet Protocol
Refer to IP on page 202 and TCP/IP on page 211.
Internet
A collection of networks and gateways that use the TCP/IP suite of protocols. An
internet is two or more networks connected by an internal or external router. The
word “internet” is a generic term. “The Internet” is the world’s largest internet.
Interswitch Link (ISL)
Interswitch Link. An Avaya proprietary mechanism to tag packets with VLAN and
priority information across the backbone. This allows two Avaya devices to act as a
single logical entity.
IP
The protocol that governs packet forwarding within the TCP/IP standards
developed and used on the Internet. Refer to TCP/IP on page 211.
IP Address
A 32-bit address assigned to hosts using TCP/IP. An IP address is written as 4 octets
separated by periods (dotted decimal format). Each address consists of a network
number, an optional subnetwork number, and a host number. The network and
subnetwork numbers together are used for routing, while the host number is used
to address an individual host within the network or subnetwork. A subnet mask is
used to extract network and subnetwork information from the IP address.
IPX
Internetwork Packet Exchange. A network layer protocol used for transferring data
from servers to workstations. IPX is primarily used in Novell NetWare operating
systems.