User guide

Canopy System User Guide Glossary
pmp-0229 (Mar 2013)
603
C/I Ratio
Ratio of intended signal (carrier) to unintended signal (interference)
received.
Canopy
A trademark of Cambium, Inc.
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.
chkconfig
A command that the Linux
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operating system accepts to enable
MySQL
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and Apache™ Server software for various run levels of the
mysqld and httpd utilities.
CIR
See Committed Information Rate.
Cluster Management
Module
Module that provides power, GPS timing, and networking connections
for an AP cluster. Also known as CMM. If this CMM is connected to a
Backhaul Module, then this CMM is the central point of connectivity for
the entire site.
CMM
Cluster Management Module. A module that provides power, GPS
timing, and networking connections for an Access Point cluster. If this
CMM is connected to a Backhaul Module (BH), then this CMM is the
central point of connectivity for the entire site.
CodePoint
See DiffServ.
Color Code Field
Module parameter that identifies the other modules with which
communication is allowed. The range of values is 0 to 255. When set
at 0, the Color Code does not restrict communications with any other
module.
Committed Information
Rate (CIR)
For an SM or specified group of SMs, a level of bandwidth that can be
guaranteed to never fall below a specified minimum. In the Cambium
implementation, this is controlled by the Low Priority Uplink CIR,
Low Priority Downlink CIR, High Priority Uplink CIR, and High Priority
Downlink CIR parameters.
Community String
Field
Control string that allows a network management station to access
MIB information about the module.
CPE
Customer premises equipment.
CRCError Field
This field displays how many CRC errors occurred on the Ethernet
controller.
CRM
Customer relationship management system.