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MonitorMagic
Note that the maximum number of object identifiers you can specify for a single monitor is 8. For
most circumstances, you will only use one or two object identifiers for a single Snmp get monitor
See also:
MonitorMagic SNMP support
Snmp get monitor - Overview
Snmp get monitor - Tables
Snmp get monitor - Tables
SNMP agents support tables with multiple table rows and columns. Because of the tabular nature,
this kind of information is substantially different compared to non-tabular information and needs
special processing to take care of. With MonitorMagic, SNMP tables are fully supported and you
can monitor all values of a tables.
The support of SNMP tables in MonitorMagic is best described by an example. Suppose we want
to monitor the average amount traffic received on all interfaces of a system. This information is
part MIB-II, supported by most TCP/IP hosts that support SNMP.
According to mib-ii, RFC1213, the interface table is identified by iso (1) .org (3) . dod (6) .
internet (1) . mgmt (2) . mib-2 (1) . interfaces (2) . ifTable (2) and the interface entries start at
1.3.6.1.2.1.2.2.1. To read all table rows and columns and examine the table in detail directly, see
Snmp get monitor - Read a table.
In MonitorMagic, each table row corresponds with a single Snmp get monitor. For a single
monitor, you might want to read multiple object identifiers for each row, for instance the total
number of bytes in and out for an particular interface. For this example you need to specify the 2
object identifiers, excluding the ending index (row) of table entry:
1.3.6.1.2.1.2.2.1.10 (iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifInOctets)
1.3.6.1.2.1.2.2.1.16 (iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifOutOctets)
Next you need to specify what rows you want to monitor. See Snmp get monitor - All rows versus
specific rows for more information.
See also:
MonitorMagic SNMP support
Snmp get monitor - Overview
Snmp get monitor - Tables
Snmp get monitor - Read a table
(This topic is part of a sequence of topics that start with Snmp get monitor - Tables
To view the interface table of a SNMP agent that supports MIB-II, activate the monitor policies
window, select the policy, right click the mouse, and select the menu option Add monitor, Snmp
get. Press the Add button. You will be shown the Snmp object identifier specification window.
Press the Advanced button and select options Object identifier(s) are entries in a table and
Generate monitors for the following specific table entries. Press the Add button at the
bottom of the window.
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