Ubee Interactive
Glossary
Ubee UBC1301-AA00 Advanced Wireless Voice Gateway Subscriber User Guide • March 2017
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Kerberos
A network authentication protocol which works on the basis of “tickets” to allow nodes
communicating over a non-secure network to prove their identity to one another in a
secure manner.
LAN (Local Area Network)
A group of computers and associated devices such as printers and servers that share a
common communication line and other resources within a small geographic area.
MAC (Media Access Control Address)
A unique number assigned by the manufacturer to any Ethernet networking device, such
as a network adapter, that allows the network to identify it at the hardware level. Usually
written in the form 01:23:45:67:89:ab.
Mbps (Megabits per Second)
A unit of measurement for data transmission that represents one million bits per second.
MTU (Maximum Transmission Unit)
The size in bytes of the largest packet that can be sent or received.
NAT (Network Address Translation)
A technique by which several hosts or computers share a single IP address for access to
the Internet. NAT enables a LAN to use one set of IP addresses for internal traffic and a
second set of addresses for external traffic, and provides a type of firewall by hiding
internal IP addresses.
NetBios (Network Basic Input/Output System)
A program that allows applications on different computers to communicate within a local
area network.
Net2Phone
A software/services company whose principal line of business is SIP-based and
PacketCable-based voice over IP.
Packet
A block of information sent over a network. A packet typically contains a source and
destination network address, some protocol and length information, a block of data, and a
checksum.
PPTP (Point-to-Point Tunneling Protocol)
A method for ensuring secure communication between virtual private networks.
Ranging
A process in which a cable modem sends a range request at a power of 8 dBmV (very low
power). If it does not receive a range response from the CMTS, the cable modem re-
transmits the range request at a 3 dB higher power level and continues the process until
a range response is received.
