Cambium Networks PTP 450 Series, Руководство по настройке

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Chapter 5: Troubleshooting Logs
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Term Definition
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.
BHM Backhaul Timing Master (BHM)- a module that is used in a point to point
link. This module controls the air protocol and configurations for the
link..
BHS Backhaul Timing Slave (BHS)- a module that is used in a point to point
link. This module accepts configuration and timing from the master
module.
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.
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.
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.
CIR Committed Information Rate. For an SM or specified group of SMs, a
level of bandwidth that can be guaranteed to never fall below a
specified minimum (unless oversubscribed). In the Cambium
implementation, this is controlled by the Low Priority Uplink CIR,
Low Priority Downlink CIR, Medium Priority Uplink CIR, Medium Priority
Downlink CIR parameters, High Priority Uplink CIR, High Priority
Downlink CIR parameters, Ultra High Priority Uplink CIR, and Ultra High
Priority Downlink CIR parameters.
Cluster Management
Module Module that provides power, GPS timing, and networking connections
for an AP cluster. Also known as CMM4.