Cisco IOS XR software commands related to the collection of
interface statistics (StatsD) for system monitoring on the router. Interface
statistics on the router are found in hardware (most of the time) and software
(exception packets). The counters are always local (relative to the CPU) to the
node on which the interface is homed. The
Cisco IOS XR software provides an efficient mechanism to
collect these counters from various application-specific integrated circuits
(ASICs) or NetIO and assemble an accurate set of statistics for an interface.
After the statistics are produced, they can be exported to interested parties
(command-line interface [CLI], Simple Network Management Protocol [SNMP], and
Cisco IOS XR software statistics collection system provides
a common framework to be used by all interface owners to export the statistics
for interfaces they own. The system also defines a common set of statistics
that are relevant to all interfaces and thereby provides a consistent and
constant set of counters that are always associated and maintained with any
interface on the router.
collection system includes the statistics manager, the statistics server, one
or more statistics collectors, and the necessary libraries. Each node on a
router houses one statistics server.
In addition to the
statistics server, each node (that has interfaces) has one or more statistics
collectors. Statistics collectors are platform specific and can obtain various
hardware and software counters to satisfy requests from the statistics server.
manager does not attempt to produce statistics for interfaces for which no
statistics collector has registered. Requests for statistics on interfaces for
which no statistics collector has registered results in an error returned to
the requestor by the statistics manager.
To use commands of this module, you must be in a user group
associated with a task group that includes appropriate task IDs. If the user
group assignment is preventing you from using any command, contact your AAA
administrator for assistance.