Carrier Access CMG Router user manual Loopback Media Access Control MAC Mbps, Multilink PPP

Glossary

LMI

Loopback

Media Access Control (MAC)

Mbps

MCMP

Multilink PPP

NAT

NTP

PAP

Local Management Interface. A specification for the use of frame-relay products that define a method of exchanging status information between devices such as routers.

A diagnostic test in which a signal is transmitted across a medium while the sending device waits for its return.

The lower of the two sub-layers of the data link layer defined by the IEEE. The MAC sub-layer handles access to shared media, such as whether token passing or contention will be used. The MAC contains the standardized data link layer address that is required for every port or device that connects to a LAN. Other devices in the network use these addresses to locate specific ports in the network and to create and update routing tables and data structures. MAC addresses are 6 bytes long and are controlled by the IEEE.

Million Bits Per Second.

Multi-Channel Multi-Point. MCMP is a circuit card that enables the support of up to six independent applications over a single multipoint digital facility. The MCMP capability can support up to 40 tributary DSUs, each optioned with an MCMP card.

Multilink Point-to-Point Protocol. A method where packet data traffic is spread across multiple serial WAN links in order to increase transmission speed.

Network Address Translation. An Internet standard that enables a local- area network (LAN) to use one set of IP addresses for internal traffic and a second set of addresses for external traffic. A NAT box located where the LAN meets the Internet makes all necessary IP address translations.

Network Time Protocol, developed to maintain a common sense of time among Internet hosts around the world. Many systems on the Internet run NTP, and have the same time (relative to Greenwich Mean Time).

Password Authentication Protocol. An authentication protocol that allows Point-to-Point Protocol peers to authenticate one another.

CMG Router - Release 2.7 Glossary - 5