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Glossary

MII

Media Independent Interface: Used in Fast Ethernet and Gigabit

Ethernet to provide faster bit transfer rates of four and eight bits at a time.
Contrast to AUI interface that is one bit at a time.

MIP

Multichannel Interface Processor: The resident interface processor on

Cisco 7000 series routers, providing up to two channelized T-1 or E-1 con-
nections by serial cables connected to a CSU. The two controllers are capable
of providing 24 T-1 or 30 E-1 channel groups, with each group being intro-
duced to the system as a serial interface that can be configured individually.

mips

millions of instructions per second: A measure of processor speed.

MLP

Multilink PPP: A technique used to split, recombine, and sequence

datagrams across numerous logical data links.

MMP

Multichassis Multilink PPP: A protocol that supplies MLP sup-

port across multiple routers and access servers. MMP enables several
routers and access servers to work as a single, large dial-up pool with one
network address and ISDN access number. MMP successfully supports
packet fragmenting and reassembly when the user connection is split between
two physical access devices.

modem

modulator-demodulator: A device that converts digital signals

to analog and vice-versa so that digital information can be transmitted over
analog communication facilities, such as voice-grade telephone lines. This
is achieved by converting digital signals at the source to analog for trans-
mission and reconverting the analog signals back into digital form at the
destination. See also: modulation and demodulation.

modem eliminator

A mechanism that makes possible a connection

between two DTE devices without modems by simulating the commands
and physical signaling required.

modulation

The process of modifying some characteristic of an electrical

signal, such as amplitude (AM) or frequency (FM), in order to represent dig-
ital or analog information. See also: AM.

MOSPF

Multicast OSPF: An extension of the OSPF unicast protocol that

enables IP multicast routing within the domain. See also: OSPF.

MPOA

Multiprotocol over ATM: An effort by the ATM Forum to stan-

dardize how existing and future network-layer protocols such as IP, IPv6,
AppleTalk, and IPX run over an ATM network with directly attached hosts,
routers, and multilayer LAN switches.

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