Cambium PTP 450 series, User Manual

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PMP 450 Configuration and User Guide Glossary
ptp-450 (July 2014)
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Global Positioning
System
Network of satellites that provides absolute time to networks on earth, which use the
time signal to synchronize transmission and reception cycles (to avoid interference) and
to provide reference for troubleshooting activities.
GPS Global Positioning System. A network of satellites that provides absolute time to
networks on earth, which use the time signal to synchronize transmission and reception
cycles (to avoid interference) and to provide reference for troubleshooting activities.
GPS/3 Third-from-left LED in the module. In the operating mode for an BHM Module, this
LED is continuously lit as the module receives sync pulse. In the operating mode for a
Subscriber, this LED flashes on and off to indicate that the module is not registered.
GUI Graphical user interface.
High-priority
Channel
Channel that supports low-latency traffic (such as Voice over IP) over low-latency
traffic (such as standard web traffic and file downloads). To recognize the latency
tolerance of traffic, this channel reads the IPv4 Type of Service DiffServ Control Point
(DSCP) bits. Enabling the high-priority channel reduces the maximum number of
BHSs that can be served in the sector.
HTTP Hypertext Transfer Protocol, used to make the Internet resources available on the
World Wide Web. Defined in RFC 2068. See http://www.faqs.org/rfcs/rfc2068.html .
ICMP Internet Control Message Protocols defined in RFC 792, used to identify Internet
Protocol (IP)-level problems and to allow IP links to be tested. See
http://www.faqs.org/rfcs/rfc792.html .
indiscards count
Field
How many inbound packets were discarded without errors that would have prevented
their delivery to a higher-layer protocol. (Some of these packets may have been
discarded to increase buffer space.)
inerrors count Field How many inbound packets contained errors that prevented their delivery to a higher-
layer protocol.
innucastpkts count
Field
How many inbound non-unicast (subnetwork-broadcast or subnetwork-multicast)
packets were delivered to a higher-layer protocol.
inoctets count Field How many octets were received on the interface, including those that deliver framing
information.
Intel A registered trademark of Intel Corporation.
inucastpkts count
Field
How many inbound subnetwork-unicast packets were delivered to a higher-layer
protocol.
inunknownprotos
count Field
How many inbound packets were discarded because of an unknown or unsupported
protocol.
IP Internet Protocol defined in RFC 791. The Network Layer in the TCP/IP protocol
stack. This protocol is applied to addressing, routing, and delivering, and re-assembling
data packets into the Data Link layer of the protocol stack. See
http://www.faqs.org/rfcs/rfc791.html .
IP Address 32-bit binary number that identifies a network element by both network and host. See
also Subnet Mask.