Cisco Cisco Digital Service Access Node (DSAN) 8211 Installation Guide
Chapter 5 SNMP Management
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Introduction
Simple network management protocol (SNMP) is an ISO standard communication
protocol often used by network and element management systems to monitor
network devices for alarms and other significant conditions.
protocol often used by network and element management systems to monitor
network devices for alarms and other significant conditions.
SNMP accesses information about network devices through management
information base (MIB) objects. MIBs are hierarchical tree-structured descriptions
used to define database elements. SNMP is used to manage individual data elements
and the values assigned to MIB objects.
information base (MIB) objects. MIBs are hierarchical tree-structured descriptions
used to define database elements. SNMP is used to manage individual data elements
and the values assigned to MIB objects.
SNMP addresses a single MIB object using a numeric string called an object
identifier (OID). The OID defines a branching path through the hierarchy to the
location of the object. In addition to the OID, a MIB object is known by its object
descriptor, a text string intended to be more meaningful to a human operator. The
OID and object descriptor are unique to each MIB object.
identifier (OID). The OID defines a branching path through the hierarchy to the
location of the object. In addition to the OID, a MIB object is known by its object
descriptor, a text string intended to be more meaningful to a human operator. The
OID and object descriptor are unique to each MIB object.
Also defined for each MIB object is the access that SNMP can afford to the object
data value. For example, if a MIB object has read-write access, SNMP can be used to
both get (retrieve) and set (define or change) the value of the object. If an object is
read-only, SNMP can be used to get the object value, but not to change it.
data value. For example, if a MIB object has read-write access, SNMP can be used to
both get (retrieve) and set (define or change) the value of the object. If an object is
read-only, SNMP can be used to get the object value, but not to change it.
Proprietary DSAN MIB
The proprietary DSAN MIB allows easy access to DSAN hardware, software, alarm,
and troubleshooting information. This information is grouped as follows:
and troubleshooting information. This information is grouped as follows:
Manufacturing
Administration
Status
Diagnostics
Configuration
Enhanced Channel Map
Software image
Wideband tuner
Wideband receiver
MPEG
Alarms
DTA
Manual Configuration