User Guide

PMP 450 Planning Guide Glossary
Term Definition
APs MIB Management Information Base file that defines objects that are specific to the
Access Point Module. See also Management Information Base.
ARP Address Resolution Protocol. A protocol defined in RFC 826 to allow a network
element to correlate a host IP address to the Ethernet address of the host. See
http://www.faqs.org/rfcs/rfc826.html
.
ASN.1 Abstract Syntax Notation One language. The format of the text files that compose
the Management Information Base.
Attenuation Reduction of signal strength caused by the travel from the transmitter to the
receiver, and caused by any object between. In the absence of objects between, a
signal that has a short wavelength experiences a high degree of attenuation
nevertheless.
BER Bit Error Rate. The ratio of incorrect data received to correct data received.
Bit Error Rate Ratio of incorrect data received to correct data received.
Box MIB Management Information Base file that defines module-level objects. See also
Management Information Base.
Bridge Network element that uses the physical address (not the logical address) of another
to pass data. The bridge
passes the data to either the destination address, if found in
the simple routing table, or to all network segments other than the one that
transmitted the data. Modules are Layer 2 bridges except that, where NAT is
enabled for an SM, the SM is a Layer 3 switch. Compare to Switch and Router, and
see also NAT.
Bridge Entry
Timeout Field
Value that the operator sets as the maximum interval for no activity with another
module, whose MAC address is the Bridge Entry. This interval should be longer
than the ARP (Address Resolution Protocol) cache timeout of the router that feeds
the network.
Buckets Theoretical data repositories that can be filled at preset rates or emptied when
preset conditions are experienced, such as when data is transferred.
Burst Preset amount limit of data that may be continuously transferred.
C/I Ratio Ratio of intended signal (carrier) to unintended signal (interference) received.
Carrier-to-
interference Ratio
Ratio of intended reception to unintended reception.
CarSenseLost Field This field displays how many carrier sense lost errors occurred on the Ethernet
controller.
CAT 5 Cable Cable that delivers Ethernet communications from module to module. Later
modules auto-sense whether this cable is wired in a straight-through or crossover
scheme.
II
pmp-0047 (March 2014)