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67 — Statistics collection overview
Alcatel-Lucent 5620 Service Aware Manager, Release 7.0 R6 December 2009 67-5
3HE 04551 AAAE Ed. 01 Statistics Management Guide
NE MIB statistics policies
An NE MIB statistics policy defines the global collection of specific statistics on
specific NEs, for example, the port statistics from all ports in a group of NEs. In such
a collection scenario, configuring NE MIB policies rather than specific MIB policies
is more efficient and uses fewer collection resources. Alcatel-Lucent recommends
using NE MIB policies for general performance statistics collection on groups of
NEs, and specific policies to enable or disable collection for specific NE objects.
After an NE MIB statistics policy is applied to an NE, statistics are collected for all
objects on the NE, except for objects that have a specific MIB statistics policy. This
prevents statistics from being collected twice—once by the NE MIB policy and once
by the specific MIB policy.
Each NE requires an NE MIB statistics policy. The 5620 SAM has a default policy
that it applies to an NE automatically when no NE MIB statistics policy is specified.
The collection interval for each counter in the default policy is 15 min, and collection
is disabled by default to conserve NE resources.
Specific MIB statistics policies
A specific MIB statistics policy defines the collection of selected performance
statistics from specific objects on specific NEs to achieve a high statistics-collection
granularity. For example, to collect port statistics at one rate for access ports and
another rate for network ports, you can configure two policies that specify different
collection intervals, and explicitly specify the access or network ports to which each
policy applies. When a new access or network port is enabled, a 5620 SAM operator
can add the port to the specific MIB statistics policy to enable statistics collection on
the port.
The settings in a specific MIB statistics policy override the settings in an NE MIB
statistics policy, and can be used to disable statistics collection for specific objects.
For example, you enable statistics collection globally for an NE using an NE MIB
statistics policy, and then disable the collection of specific statistics using a specific
MIB statistics policy.
Server performance statistics policies
Server performance statistics provide information about 5620 SAM server
performance. You can specify the type of server statistics that are collected and the
collection interval for each type.
Each type of server performance statistic has the following:
a collection policy that specifies a synchronization time and a collection interval
a statistics policy that specifies the 5620 SAM database retention period
67.3 Statistics collection menus
Table 67-2 lists and describes the statistics collection menu items.
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