Ubee Interactive
Glossary
Ubee DDW36C Advanced Wireless Gateway Subscriber User Guide • October 2015
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IUC (Interval Usage Code)
Interval usage codes define different profiles for upstream burst profiles to use for the
data. IUCs are sent to the cable modem from the CMTS to tell the device important
characteristics to use for the burst, such as modulation type, preamble length, and so on.
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.
