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Basic Gateway TCP/IP Wireless USB
SBG940 User Guide
124
M
MAC address
The Media Access Control address is a unique, 48-bit value permanently saved in ROM at the factory to
identify each Ethernet network device. It is expressed as a sequence of 12 hexadecimal digits
printed
on a
Label on the Bottom of the SBG940
. You need to provide the HFC MAC address to the cable
provider. Also called an Ethernet address, physical address, hardware address, or NIC address.
MB
One megabyte; equals 1,024 x 1,024 bytes, 1,024 kilobytes, or about 8 million bits.
Mbps
Million bits per second (megabits per second). A rate of data transfer.
media
The various physical environments through which signals pass; for example, coaxial, unshielded
twisted-pair (UTP), or fiber-optic cable.
MIB
A management information base is a unique hierarchical structure of software objects used by the
SNMP manager and agent to configure, monitor, or test a device.
MHz
Megahertz — one million cycles per second. A measure of radio frequency.
MPDU
MAC protocol data unit (PDU)
MSDU
MAC service data unit
MSO
Multiple Systems Operator. A company that owns and operates more than one cable system. Also
called a group operator.
MTU
The Maximum Transmission Unit is the largest amount of data that can be transmitted in one discrete
message on a given physical network. The MTU places an upper bound on the size of a message that
can be transferred by the network in a single frame. Messages exceeding the MTU must be fragmented
before transmission, and reassembled at the destination.
multicast
A data transmission sent from one sender to multiple receivers. See also
broadcast
and
unicast
.
mW
milliwatts
