Information About Periodic Mib Data Collection And Transfer - Cisco ASR 9000 Series User Configuration Manual

Information About Periodic MIB Data Collection and Transfer

Information About Periodic MIB Data Collection and Transfer
SNMP Objects and Instances
A type (or class) of SNMP management information is called an object. A specific instance from a type of
management information is called an object instance (or SNMP variable). To configure a bulk statistics
collection, you must specify the object types to be monitored using a bulk statistics object list and the specific
instances of those objects to be collected using a bulk statistics schema.
MIBs, MIB tables, MIB objects, and object indices can all be specified using a series of numbers called an
object identifier (OID). OIDs are used in configuring a bulk statistics collection in both the bulk statistics
object lists (for general objects) and in the bulk statistics schemas (for specific object instances).
Bulk Statistics Object Lists
To group the MIB objects to be polled, you need to create one or more object lists. A bulk statistics object
list is a user-specified set of MIB objects that share the same MIB index. Object lists are identified using a
name that you specify. Named bulk statistics object lists allow the same configuration to be reused in different
bulk statistics schemas.
All the objects in an object list must share the same MIB index. However, the objects do not need to be in the
same MIB and do not need to belong to the same MIB table. For example, it is possible to group ifInOctets
and a CISCO-IF-EXTENSION-MIB object in the same schema, because the containing tables for both objects
are indexed by the ifIndex.
Bulk Statistics Schemas
Data selection for the Periodic MIB Data Collection and Transfer Mechanism requires the definition of a
schema with the following information:
• Name of an object list.
• Instance (specific instance or series of instances defined using a wild card) that needs to be retrieved for
• How often the specified instances need to be sampled (polling interval). The default polling interval is
A bulk statistics schema is also identified using a name that you specify. This name is used when configuring
the transfer options.
Bulk Statistics Transfer Options
After configuring the data to be collected, a single virtual file (VFile or bulk statistics file) with all collected
data is created. This file can be transferred to a network management station using FTP or TFTP. You can
specify how often this file should be transferred. The default transfer interval is once every 30 minutes. You
can also configure a secondary destination for the file to be used if, for whatever reason, the file cannot be
transferred to the primary network management station.
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objects in the specified object list.
5 minutes.
Configuring Periodic MIB Data Collection and Transfer