HP 3162 manual GL-4

Glossary

Enterprise MIB	MIB objects unique to a specific company’s devices.
enterprise-specific	A trap unique to a specific company’s devices.
trap
EON	End of Number.
error	A discrepancy between a measured or computed value or condition and the true or
	specified value or condition.
ES	Errored Seconds. A second with one or more ESF error events (one or more CRC6 error
	events or OOFs).
ESD	ElectroStatic Discharge. An undesirable discharge of static electricity that can damage
	equipment and degrade electrical circuitry.
ESF	Extended SuperFrame. The T1 transmission standard that specifies 24 frames as an
	extended superframe to be used for frame synchronization and to locate signaling bits.
Ethernet	A type of network that supports high-speed communication among systems. It is a widely
	implemented standard for LANs. All hosts are connected to a coaxial cable where they
	contend for network access using a Carrier Sense, Multiple Access with Collision
	Detection (CSMA/CD) paradigm.
failure	An uncorrected hardware error.
fault	An accidental condition that causes a functional unit to fail to perform its required function.
FCC	Federal Communications Commission. The Board of Commissioners that regulates all
	electrical communications that originate in the United States.
FDL	Facility Data Link. The selected framing bits in the ESF format used in a wide-area link that
	are used for control, monitoring, and testing.
Fractional T1	Individual DS0 channels that may be sold separately or in groups to provide bandwidth
	that is some fraction of the total T1 capability.
frame	One identifiable group of bits that includes a sequence of bits for control, framing, etc.
frame relay	A high-speed connection-oriented packet switching WAN protocol using variable-length
	frames.
framing	A technique that separates bits into identifiable groups.
Generic-Interface	An extension to MIB II that defines additional objects for control of generic interfaces in
Extension MIB	MIB II.
Get (SNMP)	A command providing read-only access to SNMP MIB objects.
ground	A physical connection to earth or other reference point.
HDLC	High-Level Data Link Control. A communications protocol defined by the International
	Standards Organization (ISO).
host	A computer attached to a network that shares its information and devices with the rest of
	the network.
Hz	Hertz. A unit of frequency that equals one cycle per second.
ICMP	Internet Control Management Protocol. Internet protocol that allows for the generation of
	error messages, tests packets, and information messages related to IP.
IEEE 802.3	A standard for a LAN protocol suite, implemented as Ethernet.
interface	A shared boundary between functional units.

GL-4 August 2000 3162-A2-GB20-40