Check-Manual von netapp_ontap_if

NetApp Filer: State of Network Interfaces

Distribution	Official part of Checkmk
Lizenz	GPLv2
Unterstützte Agenten	Netapp

This check monitors the operational status, link speed, traffic, packet counts, discards and errors of network interfaces of a NetApp Filer. Currently, only the ethernet and virtual interfaces are checked. For virtual interfaces, the check raises a WARN if the speed differs among the members of the virtual interface.

Also - if available for a given virtual interface - failover information will be taken into account the following way: if for a given virtual interface the state of any of it's failover ports is not 'up' the service status will be CRIT if that node is part of the home node, WARN otherwise.

Depending on the check parameters, this check can go WARN or CRIT when the port status changes (i.e. is down), when the link speed changes (e.g. a port expected to be set to 1 GBit/s operates only at 100 MBit/s), when the absolute or procentual traffic of a port exceeds certain levels or if the rate of errors or discards exceeds configurable limits.

This check supports averaging the in- and outgoing traffic over a configurable time range by using an exponentially weighted moving average - just as Linux does for the CPU load averages. The averaging can be configured on a per-host and per-interface base. Interfaces with averaging turned on yield two additional performance values: the averaged in- and outgoing traffic in bytes. If you have configured traffic levels, then those levels are applied to the averaged values.

Item

There are three allowed ways to specify an interface: its index (depends on the order of the data reported by the agent), which simply enumerates the interfaces starting from 1, its description and its alias. Note that it might be a good idea to configure checkmk to discover the interfaces using the description in the service name, since the index can change over time (rule "Network interface and switch port discovery").

Discovery

One service is created for each interface that fulfills configurable conditions (rule "Network interface and switch port discovery"). By default, these are interfaces which are currently found {up} and are of type 6, 32, 62, 117, 127, 128, 129, 180, 181, 182, 205 or 229. {Grouping:} In some situations, you do not want to monitor a single interface but a group of interfaces that together form a pool. This check supports such pools by defining groups. The data of all members is accumulated and put together in a single grouped interface service.