User guide

March 2005 Glossary
Through Software Release 6.1
Page 422 of 425 Issue 1
Canopy System User Guide
RES
Result. A field in the data that the cmd show esn command
generates from the SQL database in the Bandwidth and Authentication
Manager (BAM) server.
RetransLimitExp Field
This field displays how many times the retransmit limit has expired.
RF
Radio frequency. How many times each second a cycle in the antenna
occurs, from positive to negative and back to positive amplitude.
RJ-11
Standard cable that is typically used for telephone line or modem
connection.
RJ-45
Standard cable that is typically used for Ethernet connection. This
cable may be wired as straight-through or as crossover. Later Canopy
modules auto-sense whether the cable is straight-through or
crossover.
Router
Network element that uses the logical (IP) address of another to pass
data to only the intended recipient. Compare to Switch and Bridge.
RPM
Red Hat
®
Package Manager.
rpm
A command that the Linux
®
operating system accepts to identify the
version of Linux
®
software that operates on the Bandwidth and
Authentication Manager (BAM) server.
RSSI
Radio Signal Strength Indicator. A relative measure of the strength of
a received signal. An acceptable link displays an RSSI value of greater
than 700.
RxBabErr Field
This field displays how many receiver babble errors occurred.
RxOverrun Field
This field displays how many receiver overrun errors occurred on the
Ethernet controller.
Secure Shell
A trademark of SSH Communications Security.
Self-interference
Interference with a module from another module in the same network.
SES/2
Third-from-right LED in the module. In the Access Point Module and
Backhaul timing master, this LED is unused. In the operating mode for
a Subscriber Module or a Backhaul timing slave, this LED flashes on
and off to indicate that the module is not registered. In the aiming
mode for a Subscriber Module or a Backhaul timing slave, this LED is
part of a bar graph that indicates the quality of the RF link.
Session Key
Software key that the SM and Bandwidth and Authentication Manager
(BAM) separately calculate based on that both the authentication key
(or the factory-set default key) and the random number. BAM sends
the session key to the AP. Neither the subscriber nor the network
operator can view this key. See also Random Number.