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List of terms

MCDN

See Meridian 1 ISDN Primary Rate Interface (MCDN) (page 81).

MCR

See minimum cell rate (MCR) (page 81).

MCS

See frame relay managed cut-through switching (MCS) (page 55).

MDCR

See minimum desired cell rate (MDCR) (page 81).

MDP

See Management Data Provider (MDP) (page 78).

MDR

See management data router (MDR) (page 79).

measurement interval (T)

The time interval over which rates and burst sizes are measured. In general, its duration is proportional to the burstiness of the traffic.

media access control (MAC)

A 48-bit address unique to each local area network interface. This address is usually derived from the manufacturer’s ID number and the serial number of the interface chip set.

media gateway (MG)

A device that provides media transformation from TDM to VoIP or ATM under the control of a media gateway controller via a device control interface such as VGCP. The MG handles all the bearer traffic functionality.

media gateway controller (MGC)

Adevice that acts on user- or peer-device signaling to create or delete a narrowband connection on a media gateway via a device control interface such as VGCP. The MGC handles all the signaling and call control functionality.

membership scope

In PNNI networking, the level of the routing hierarchy within which advertisement of a given address is constrained.

Nortel Multiservice Switch 7400/15000/20000

Terminology

NN10600-005 7.2S1 Standard

PCR7.2 and up March 2006

Copyright © 2006, Nortel

Nortel Confidential

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Panasonic 15000 manual Mcdn, Mcr, Mcs, Mdcr, Mdp, Mdr