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FortiGate Devices: Network Interfaces via Standard MIB Using 64 Bit Counters
This check does exactly the same as if64 but retrieves ifName instead
of ifAlias, because ifAlias is not useful in Fortigate firewalls.
Please refer to the if64 manpage for documentation.
There are three allowed ways to specify a port: 1: the last component of
the SNMP OID number (as string), the ifDescr of the port or the ifAlias of
the port. If you are using the alias, you have to make sure that it is unique
by configuring useful aliases in the switch. Checkmk does not check for uniqueness.
One service is created for each port that fulfills configurable conditions.
Per default these are ports which are currently found up and are of types 6 (ethernetCsmacd),
32 (frameRelay), 117 (gigabitEthernet) or several others.
For further details look at if64 manpage.