9.441 Netgear-M4300-Monitor

The Netgear-M4300-Monitor device driver monitors the state of up to 48 interfaces of a Netgear M4300 switch via SNMP. The driver is based on the MIB-2 interface monitor device driver. In addition to a textual description of the operational state (ifOperStatus) of each interface monitored, the driver provides fault signals for each interface not being 'up' and also the RX data rate, TX data rate and load interval. The load interval gives an indication of the integration time for the displayed data rate. This device driver is monitoring only.

The driver permits to configure the list of interfaces to be monitored. For this, the table index of each interface to monitor must be entered at the maintenance/setup page of the device window. As a side effect, devices which are numbering their interfaces non-sequentially are supported as well.

It is maybe necessary to enable the SNMP monitoring on the network switch via the Webinterface. Device window pages

The following table shows which device window pages are available with this individual device type. Tool-bar functions not mentioned here are described at the general description of device windows .

• --- This page whows the operational state of each interface monitored.
• --- The faults page.
• --- The device info page.
• --- The maintenance page. The configuration parameters described below are set at this page.

Configuration parameters

At the maintenance page of the device window there are a couple of configuration parameter which must be set to reflect the configuration of the redundancy switch in the sat-nms software.

• parameter --- description

• address --- The SNMP address specification for the device. The full address specification consists of the following fields:aaa.bbb.ccc.ddd:pppp read-community write-community

  • aaa.bbb.ccc.ddd --- The IP address of the device in 'dotted quad' notation. This field is mandatory.
  • pppp --- The IP port number where the device accepts SNMP requests. The port number may be omitted, the driver uses the standard port 161 in this case.
  • read-community --- The SNMP read community name. This must match the read community expected by the device.
  • write-community --- The SNMP write community name. This must match the write community expected by the device. The write community name may be omitted, the driver uses the read community name for both, read and write in this case. If both community names are missing, the driver uses 'public' as a default for read and write community.

• ifIndex.1 ... ifIndex.48 --- For each interface to be monitored, the table index of the interface in the mib-2.interfaces has to be entered here. You find the index values with the documentation of the router or switch to monitor or simply by "walking" through the interfaces list of the device by means of a SNMP MIB browser tool. Setting an index value to zero means not to monitor this value.

Fault handling

For each of the 48 monitorable interfaces, the device provides a fault flag which is set if this interface is not "up". You may suppress this behaviour by setting the appropriate fault flags to "OFF" or "INFO", depending on the type of signalling desired for each individual interface.

Variables defined by this device driver