Installation Guide

Table Of Contents
PMP 450i and PTP 450i Configuration and User Guid
: Glossary
Term
Definition
Point-to-
Multipoint
Protocol
Defined in RFC 2178, which specifies that data that originates from
a central network element can be received by all other network
elements, but data that originates from a non-central network
element can be received by only the central network element. See
http://www.faqs.org/rfcs/rfc2178.html
. Also referenced as PMP.
PPPoE Point to Point Protocol over Ethernet. Supported on SMs for
operators who use PPPoE in other parts of their network
operators who want to deploy PPPoE to realize per-subscriber
authentication, metrics, and usage control.
PPS Packet Per Second
PPTP Point to Point Tunneling Protocol. One of several virtual private
network implementations. Regardless of whether the Network
Address Translation (NAT) feature enabled, Subscriber Modules
support VPNs that are based on this protocol.
Protective Earth Connection to earth (which has a charge of 0 volts). Also known as
ground.
Proxy Server Network computer that isolates another from the Internet. The
proxy server communicates for the other computer, and sends
replies to only the appropriate computer, which has an IP address
that is not unique or not registered.
PTMP See Point-to-Multipoint Protocol.
Quick Start Interface page that requires minimal configuration for initial
module operation.
Radio Signal
Strength
Indicator
Relative measure of the strength of a received signal. An
acceptable link displays an Radio Signal Strength Indicator (RSSI)
value of greater than 700.
Recharging Resumed accumulation of data in available data space (buckets).
See Buckets.
Reflection Change of direction and reduction of amplitude of a signal that
encounters an object larger than the wavelength. Reflection may
cause an additional copy of the wavelength to arrive after the
original, unobstructed wavelength arrives. This causes partial
cancellation of the signal and may render the link unacceptable.
However, in some instances where the direct signal cannot be
received, the reflected copy may be received and render an
otherwise unacceptable link acceptable.
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pmp-0957 (April 2015)