SNMP Configuration and Management Manual

Glossary
SNMP Configuration and Management Manual—424777-006
Glossary-10
object tree
object tree. The model used to identify SNMP objects. It comprises an unlabeled root
connected to labeled nodes which in turn may have subordinate nodes. A node and its
subordinate nodes make up a subtree. A node with no subordinates is a leaf object.
Each object on the tree is assigned an object descriptor and an object identifier.
OCS. See Operator Control Services.
octet. An 8-bit value.
OID. See object identifier.
omf group. A collection of scalar objects in the Object Monitoring Facility Trap MIB that is
used as variable bindings in traps created from OMF events.
onscommon group. A collection of scalar objects in the Transaction Monitoring Facility
Trap MIB that is used as variable bindings in traps created from TMF events.
onsconfigure group. A collection of scalar objects in the ONS MIB that specifies the
objects needed to invoke ONS (onsState) and to monitor ONS activity.
onsconfirmTrap group. A table of objects in the ONS MIB used for HP problem-
management products.
ONSDB. The Enscribe file that contains the ONS statistics database.
ONSFLTOA. The event filter file for the $ZNSDES distributor process.
ONSFLTOG. The event filter file for the $ZNSDG distributor process.
ONSFLTOS. The event filter file for the $ZONS remote operations.
ONS Trap Subagent. The SNMP subagent that collects EMS events from the HP system
event log ($0) and translates them into SNMP traps. These SNMP traps are sent to an
SNMP manager by the SNMP agent.
open systems. The concept of multiple vendors’ hardware and software working together
without proprietary boundaries.
Operator Control Services. The NonStop NET/MASTER MS service that provides the
central point of operational control of the local NonStop system, the local NonStop
NET/MASTER MS system, and remote NonStop systems.
Parallel Library TCP/IP. An HP product that provides increased performance and scalability
over NonStop Transmission Control Protocol/Internet Protocol (TCP/IP). Parallel
Library TCP/IP coexists with NonStopTCP/IP on HP NonStop™ S-series systems and
supports Ethernet 4 ServerNet adapters (E4SAs), Fast Ethernet ServerNet adapters
(FESAs), and ServerNet wide area network (SWAN) concentrators.
PDU. See protocol data unit.