PMP 450 Planning Guide
Glossary
Term
Definition
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. 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.
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.
TCP
Alternatively known as Transmission Control Protocol or Transport Control Protocol.
The Transport Layer in the TCP/IP protocol stack. This protocol is applied to assure
that data packets arrive at the target network element and to control the flow of data
through the Internet. Defined in RFC 793. See
http://www.faqs.org/rfcs/rfc793.html
TDD
Time Division Duplexing. Synchronized data transmission with some time slots
allocated to devices transmitting on the uplink and some to the device transmitting on
the downlink.
X
pmp-0047 (March 2014)
Summary of Contents for PMP 450
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