GeoDesy FSO Next series User Manual
Page 43
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7.4.6 SNMP Technology
SNMP is part of the Internet network management architecture. This architecture is
based on the interaction of many entities, as described in the following section.
The Internet Management Model
As specified in Internet RFCs and other documents, a network management system
comprises:
Network elements -- Sometimes called
hardware devices such as computers, routers, and terminal servers that are
connected to networks.
Agents --
Agents are software modules that reside in network elements. They collect
and store management information such as the number of error packets
a network element.
Managed object --
A managed object is a characteristic of something that can be
managed. For example, a list of currently active TCP circuits in a particular host
computer is a managed object. Managed objects differ from va
particular object instances. Using our example, an object instance is a single active
TCP circuit in a particular host computer. Managed objects can be scalar (defining a
single object instance) or tabular (defining multiple, related ins
Management information base
residing in a virtual information store. Collections of related managed objects are
defined in specific MIB modules.
Syntax notation --
A syntax notation is a language used to describe a MIB's
managed objects in a machine
notation allows different types of computers to share information. Internet
management systems use a subset of the Inte
Standardization's (ISO's)
Notation 1
(ASN.1) to define both the packets exchanged by the management
protocol and the objects that are to be managed.
Structure of Management Info
describing management information. The SMI is defined using ASN.1.
Network management stations
execute management applications that monitor and control netw
Physically, NMSs are usually engineering workstation
CPUs, megapixel color displays, substantial memory, and abundant disk space. At
least one NMS must be present in each managed environment.
Parties -- Newly defined in SNMPv2, a party is a logical SNMPv2 entity that can
initiate or receive SNMPv2 communication. Each SNMPv2 party comprises a single,
unique party identity, a logical network location, a single authentication protocol, and
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43
SNMP Technology
SNMP is part of the Internet network management architecture. This architecture is
of many entities, as described in the following section.
The Internet Management Model
As specified in Internet RFCs and other documents, a network management system
Sometimes called managed devices, network elements a
hardware devices such as computers, routers, and terminal servers that are
Agents are software modules that reside in network elements. They collect
and store management information such as the number of error packets
A managed object is a characteristic of something that can be
managed. For example, a list of currently active TCP circuits in a particular host
computer is a managed object. Managed objects differ from variables, which are
particular object instances. Using our example, an object instance is a single active
TCP circuit in a particular host computer. Managed objects can be scalar (defining a
single object instance) or tabular (defining multiple, related instances).
Management information base (MIB) -- A MIB is a collection of managed objects
residing in a virtual information store. Collections of related managed objects are
defined in specific MIB modules.
A syntax notation is a language used to describe a MIB's
managed objects in a machine-independent format. Consistent use of a syntax
notation allows different types of computers to share information. Internet
management systems use a subset of the International Organization for
Standardization's (ISO's) Open System Interconnection (OSI)
(ASN.1) to define both the packets exchanged by the management
protocol and the objects that are to be managed.
Structure of Management Information (SMI) -- The SMI defines the rules for
describing management information. The SMI is defined using ASN.1.
Network management stations (NMSs) -- Sometimes called consoles
execute management applications that monitor and control netw
Physically, NMSs are usually engineering workstation-caliber computers with fast
CPUs, megapixel color displays, substantial memory, and abundant disk space. At
least one NMS must be present in each managed environment.
Newly defined in SNMPv2, a party is a logical SNMPv2 entity that can
initiate or receive SNMPv2 communication. Each SNMPv2 party comprises a single,
unique party identity, a logical network location, a single authentication protocol, and
Telefon: 06-1-481-2050
Fax.: 06-1-481-2049
http://www.geodesy-fso.com
SNMP is part of the Internet network management architecture. This architecture is
of many entities, as described in the following section.
As specified in Internet RFCs and other documents, a network management system
, network elements are
hardware devices such as computers, routers, and terminal servers that are
Agents are software modules that reside in network elements. They collect
and store management information such as the number of error packets received by
A managed object is a characteristic of something that can be
managed. For example, a list of currently active TCP circuits in a particular host
riables, which are
particular object instances. Using our example, an object instance is a single active
TCP circuit in a particular host computer. Managed objects can be scalar (defining a
tances).
A MIB is a collection of managed objects
residing in a virtual information store. Collections of related managed objects are
A syntax notation is a language used to describe a MIB's
independent format. Consistent use of a syntax
notation allows different types of computers to share information. Internet
rnational Organization for
(OSI) Abstract Syntax
(ASN.1) to define both the packets exchanged by the management
The SMI defines the rules for
describing management information. The SMI is defined using ASN.1.
consoles, these devices
execute management applications that monitor and control network elements.
caliber computers with fast
CPUs, megapixel color displays, substantial memory, and abundant disk space. At
Newly defined in SNMPv2, a party is a logical SNMPv2 entity that can
initiate or receive SNMPv2 communication. Each SNMPv2 party comprises a single,
unique party identity, a logical network location, a single authentication protocol, and