SNMP Configuration and Management Manual

Glossary
SNMP Configuration and Management Manual—424777-006
Glossary-17
well-known port
well-known port. Any of a set of protocol ports preassigned for specific uses by transport
level protocols (that is, TCP and UDP). Servers follow the well-known port assignments
so clients can locate them.
wide area network. Any of a number of technologies that data transfer among electronic
entities that are geographically remote from each other.
X.25. The CCITT standard protocol for transport-level network service. Originally designed
to connect terminals to computers, X.25 provides a reliable stream transmission
service that can support remote logon.
X.25 Access Method. A HP product that implements, for wide area networks, the services
of the network layer and layers below.
X25AM. See X.25 Access Method.
X.25 network. Any network or subnetwork linked using X.25 standards. X.25 standards are
CCITT standards that define packet-switching carrier communication in the network
layer over wide area networks.
zagInEndpoint group. The group in the SNMP agent’s private MIB that describes
request/response connections between the SNMP agent and SNMP managers.
zagInProcess group. The group in the SNMP agent’s private MIB that provides information
about the SNMP agent’s process objects.
zagInProfile group. The group in the SNMP agent’s private MIB that defines the criteria the
SNMP agent uses to determine whether to accept or reject incoming requests from
SNMP managers.
zagInternal group. The group for the SNMP agent’s private MIB under which the
zagInProcess, zagInEndpoint, zagInProfile, and zagInTrapdest groups are organized.
zagInTrapdest group. The group in the SNMP agent’s private MIB that defines SNMP
manager Internet addresses and TCP/IP processes used by the SNMP agent to route
traps to specific SNMP managers.
zhrmDevUnavail group. A group defined by HP in the Host Resources Subagent’s MIB
that describes hrDevice group devices that are in a state that might require operator
intervention.
zhrmDiskThreshold trap. A trap generated by the Host Resources Subagent that identifies
a disk device that is experiencing critically high usage.
zhrmRAMThreshold trap. A trap generated by the Host Resources Subagent that identifies
a CPU whose RAM storage area is experiencing critically high usage.