Motorola SURFBOARD SVG2500 User Manual page 164

17 GLOSSARY
TERM
LCP
Latency
LED
LNS
loopback
M
TERM
MAC address
MB
Mbps
media
MIB
DEFINITION
Link Control Protocol establishes, configures, and tests data link
connections used by PPP .
The time required for a signal to pass through a device. It is often
expressed in a quantity of symbols.
light-emitting diode
An L2TP network server is a termination point for L2TP tunnels
where PPP frames are processed and passed to higher layer
protocols. LNS can operate on any platform that terminates PPP .
The LNS handles the server side of the L2TP protocol. L2TP
relies only on the single media over which L2TP tunnels arrive.
The LNS can have a single LAN or WAN interface, but can
terminate calls arriving at any of the LAC's full range of PPP
interfaces (asynchronous, synchronous, ISDN, V.120, etc.).
The LNS initiates outgoing calls and receives incoming calls. LNS
is analogous to a home gateway in L2F technology.
A test that loops the transmit signal to the receive signal.
Usually, the loopback test is initiated on a network device. The
test is used to verify a path or to measure the quality of a signal
on that path.
DEFINITION
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
SVG2500. You need to provide the HFC MAC address to the
Internet Service provider. Also called an Ethernet address,
physical address, hardware address, or NIC address.
One megabyte; equals 1,024 x 1,024 bytes, 1,024 kilobytes, or
about 8 million bits.
Million bits per second (megabits per second). A rate of data
transfer.
The various physical environments through which signals pass;
for example, coaxial, unshielded twisted-pair (UTP), or fiber-optic
cable.
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.
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