Lucent Technologies PortMaster User Manual

Page 336

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Glossary

Glossary-26

PortMaster Configuration Guide

out-of-band connection

A remote connection, or a connection outside connected networks, established over a
modem. This type of connection is useful when network communications are not
available.

P

packet

A unit of data sent across a network.

PAP

Password Authentication Protocol. An authentication protocol that allows PPP peers to
authenticate one another. The remote router attempting to connect to the local router is
required to send an authentication request. Unlike the Challenge Handshake
Authentication Protocol (CHAP), PAP passes unencrypted passwords. PAP does not itself
prevent unauthorized access, but merely identifies the remote end. The router or access
server then determines if that user is allowed access. See also CHAP.

parity check

A process for checking the integrity of a character. A parity check appends a bit to a
character or word to make the total number of binary 1 digits in the character or word
(excluding the parity bit) either odd (for odd parity) or even (for even parity).

partition

Electronic isolation of an Ethernet device from network communications.

Password Authentication Protocol

See PAP.

path

In BGP, a autonomous system path list and a collection of attributes that provide
descriptions of and explain how to reach a given collection of IP address destinations in a
single autonomous system. A path and its destination comprise a BGP route. See also
destination; autonomous system path list; route.

peer

(1) In BGP, a router with which a BGP speaker exchanges open messages, notification
messages, update messages, and keepalive messages. A PortMaster can have both internal
and external peers. See also internal peer; external peer.

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