User Manual

PMP 450 Planning Guide Glossary
X
pmp-0047 (December 2012)
Term Definition
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.
Simple Network
Management
Protocol
Standard that is used for communications between a program (agent) in the network
and a network management station (monitor). Defined in RFC 1157. See
http://www.faqs.org/rfcs/rfc1157.html
.
SM Customer premises equipment (CPE) device that extends network or Internet services
by communication with an Access Point Module or an Access Point cluster.
SM MIB Management Information Base file that defines objects that are specific to the
Subscriber Module or Backhaul timing slave. See also Management Information Base.
SNMP See Simple Network Management Protocol, defined in RFC 1157.
SNMP Trap Capture of information that informs the network monitor through Simple Network
Management Protocol of a monitored occurrence in the module.
Static IP Address
Assignment
Assignment of Internet Protocol address that can be changed only manually. Thus static
IP address assignment requires more configuration time and consumes more of the
available IP addresses than DHCP address assignment does. RFC 2050 provides
guidelines for the static allocation of IP addresses. See
http://www.faqs.org/rfcs/rfc2050.html
. See also DHCP.
su -
A command that opens a Linux
®
operating system session for the user
root
.
Subnet Mask 32-bit binary number that filters an IP address to reveal what part identifies the network
and what part identifies the host. The number of subnet mask bits that are set to 1
indicates how many leading bits of the IP address identify the network. The number of
subnet mask bits that are set 0 indicate how many trailing bits of the IP address identify
the host.
Subscriber Module Customer premises equipment (CPE) device that extends network or Internet services
by communication with an Access Point Module or an Access Point cluster.
Sustained Data Rate Preset rate limit of data transfer.
Switch Network element that uses the port that is associated with the physical address of
another to pass data to only the intended recipient. Compare to Bridge and Router.
SYN/1 Second-from-right LED in the module. In the Access Point Module or in a registered
Subscriber, this LED is continuously lit to indicate the presence of sync. In the
operating mode for a Subscriber Module, this LED flashes on and to indicate that the
module is not registered.
Sync GPS (Global Positioning System) absolute time, which is passed from one module to
another. Sync enables timing that prevents modules from transmitting or receiving
interference. Sync also provides correlative time stamps for troubleshooting efforts.