Reference Guide for the Model RT328 ISDN Router

 

 

 

 

 

MRU

See

Maximum Receive Unit.

 

 

MSN

See

Multiple Subscriber Numbering.

 

 

masquerading

A technique by which several hosts share a single IP address for access to the

 

Internet. This process is an extension of Network Address Translator (NAT).

 

See also

Network Address Translator.

 

Maximum Receive

The size in bytes of the largest packet that can be sent or received.

Unit

 

 

 

 

 

Most Significant Bit or

The portion of a number, address, or field that is farthest left when written as a

Most significant Byte

single number in conventional hexadecimal ordinary notation. The part of the

 

number having the most value.

 

 

Multilink Protocol

An extension to the point-to-point protocol allowing the combination of both

 

B channels to provide a single 128 Kbps channel.

See Point-to-Point Protocol.

Multiple Subscriber

A service of the telephone company in which a range of numbers is assigned

Numbering

to one line. Each device attached to that line (for example, a phone or router)

 

must know which number it should answer.

 

National ISDN (NI-1)

Bellcore standard for first phase of ISDN interoperability among U.S.

 

telephone companies.

 

 

NAT

See

Network Address Translator.

 

 

netmask

A number that explains which part of an IP address comprises the network

 

address and which part is the host address on that network. It can be

 

expressed in dotted-decimal notation or as a number appended to the IP

 

address. For example, a 28-bit mask starting from the MSB can be shown as

 

255.255.255.192 or as /28 appended to the IP address.

Network Address

A proposal for IP address reuse, where the local IP address is mapped to a

Translator

globally unique address.

See also

masquerading.

(or Translation)

 

 

 

 

 

NT1 (Network

Termination device that connects the user’s equipment to the ISDN network.

Termination 1)

Converts the local equipment’s four-wire S/T interface to the two-wire

 

telephone company interface. The NT1 is provided by the telephone company

 

in most of the world, but it is provided by the user in North America. Referred

 

to in some areas as a DSU.

 

 

numbered links

See

unnumbered links.

 

 

PAP

See

Password Authentication Protocol.

 

 

POTS

See

Plain Old Telephone Service.

 

 

 

 

 

 

 

 

Glossary

 

 

 

 

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