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Appendix SNMP Agent
The Xprint V7.0 objects supported by the SNMP agent are hosts, devices,
device groups, servers, supervisors, gateways and jobs. For each of these
objects, there is a table in the Xprint V7.0 MIB. These tables contain all the
attributes displayed by the xpshow and xpstat commands for the corresponding
objects. The description of each attribute can be found in the comments of the
MIB file. The MIB file (Xprint V7.0-MIB.txt) is installed in the SNMP subdirectory
of the Xprint V7.0 installation directory.
For all supported object types except jobs, the complete domain configuration
is accessible. In the specific case of jobs, only jobs managed by local servers to
the agent host are visible.
The purpose of this agent is the monitoring of Xprint V7.0 activity but not the
administration. Therefore, only read access is allowed via SNMP agent.
Moreover, no SNMP trap functionality is supported.
Be aware that objects from another domain (for instance the partner gateway...)
are always shown as not active. The purpose of the SNMP agent is to monitor
objects from the domain, not the objects from another one.
For efficiency, the Xprint V7.0 information is first completely stored in a "Cache
area" responsible for collecting the complete definition and state of each
supported object. This "cache" is notified about configuration updates except for
hosts becoming "unreachable" due to system or network crash or devices in
error but located on another host than the agent system. The latter situations
are anyway detected via a polling mechanism.
The SNMP agent has also a copy of this information in order to boost access.
This copy is automatically resynchronised with the "Cache" contents after a
given delay.
The information accuracy is determined according to two extended options of
the host object (where the SNMP agent is running):
– XP_CM_POLL_TIME: period for devices and hosts state refreshing in the
"Cache" area. This time determines the maximum time before detection of a
host no longer reachable or of a DEVICE_ERROR state occurring on
another host than the SNMP system. The value must be a number
expressing the time in seconds. The default value is "300" (5 min). A value
"0" disables this refresh operation and could lead to incorrect states of
devices and hosts.
– XP_CM_DISABLE_JOBS: When the monitoring of jobs via the SNMP agent is
not requested, performances will highly improve. A non null value disable the
monitoring of jobs and a value of "0" resets to the default behaviour. This
option is only taken into account at startup.