This module implements the "etherport" health check used
to monitor the operating status of single ethernet ports
via SNMP.

The etherport check polls the network ports and checks their
operating status. If a port is down this is causing a
red status (see also the ignoreadmin argument).

SYNTAX (please use the testers command to get an up-to-date
       syntax listing)
       
etherport

  Monitor interface operating status

  interface: list of regular expression/string
    A list of interface names

  ignoreadmin: boolean (1: true, 0: false)
    If true also monitor interfaces that are disabled by
    configuration (default: 1)

  community: string
    The SNMP get community

  item: string
    column name we should report the results under (default:
    port)

  perf: integer number
    time in minutes between sending performance data (0 for no
    performance data)