Check manual page of h3c_lanswitch_cpu

h3c_lanswitch_cpu

Author: Florian Heigl

License: GPL

Distribution: official part of Check_MK

Supported Agents: SNMP

This Check queries the CPU utilization of various LAN switches that are supporting the MIB for H3C lan switches. These are: newer 3COM switches (Superstack 4 and later), H3C branded switches and now for example the HP "A-Series" Networking gear. The same switches from the original maker Huawei are not supporting the MIB. The check tries to correctly label the CPU in your switch / stack / core switch module slots.

The check goes WARN/CRIT if the average CPU usage of the last five minutes exceeds configurable levels.

Note that some of these switches don't handle SNMP well and might generate up to 90% cpu load while queried. To accomodate for this you should lower the frequency of SNMP based checks with them.

Some devices have a high usage even in normal conditions (i.e. running full BGP tables). In that case you might have to fine tune the check parameters or even have to disable the check.

Item

A string describing the switch and unit number, for example "Switch 2 CPU 0" or "Switch 1 Slot 11".

Check parameters

Parameter	Type	Description
warning	int	the percentage of 5-minute average usage at which the check returns WARN.
critical	int	the percentage of 5-minute average usage at which the check goes critical.

Performance data

One value: the 5 minute average CPU usage in percent (from 0 to 100).

Inventory

The check will create one separate service per CPU.

Configuration variables

Variable	Type	Description
switch_cpu_default_levels	int, int	the default warn and critical levels. They are preset to (50,75) (meaning 50% for WARN and 75% for CRIT).