CaseView - Network Management System

Entity Manager Module (E.M.M)

Multi-Access Router - HDLC Over IP Module

The CaseView core system provides generic support for devices which present an SNMP interface. However, in order to extend the support for network devices, CaseView provides additional Entity Manager Modules (EMMs) which are specific to particular devices and which extend the monitoring and management control of the devices.

EMM appearance

The EMM presents a window which shows a representation of the device -both front and back view. It also draws on these views the current state of the SNMP-monitorable interfaces (e.g. links, protocols) that the MAR presents to the rest of the network. This information is continually refreshed at a constant interval - typically every ten seconds.

The screenshot to the right shows the appearance of the MAR EMM screen. In this screenshot it can be seen that only the ethernet and software loopback are up.

About Menu

The About menu provides information about the EMM version in use and about the information reported by the particular MAR in question.

About Menu

Agent Menu
The Agent menu allows you to inspect, chart and graph the MIB-II SNMP variables that the MAR supports (an introduction to MIB-II is provided elsewhere in the documentation pack). The MAR provides access to the following tables (the numbers in brackets are the MIB Object IDs of the tables):

· System Table (1.3.6.1.2.1.1).
· Internet Protocol Address Table (1.3.6.1.2.1.4.20).
· Internet Protocol Routing Table (1.3.6.1.2.1.4.21).
· Internet Protocol ARP Table (1.3.6.1.2.1.4.22).
· ICMP Table (1.3.6.1.2.1.5).
· SNMP Table (1.3.6.1.2.1.11).

The example on the right shows the Internet Protocol Address Table.

Note that the Interface Table (1.3.6.1.2.1.2) is not available on this menu but it is available in great detail from the Ports and Port menus.

Agent Menu

Tools Menu
The Tools menu allows you to perform miscellaneous operations on the device:

• Make a Secure Shell (SSH) connection to the MAR manager.

• Load configuration data to the device. You will be prompted to specify a file in which the configuration data has previously been stored.

• Dump configuration data from the device. You will be prompted to specify a file in which the configuration data will be stored.

• Restart the MAR

Ports Menu

The Ports menu allows you to inspect, chart and graph SNMP variables from the Interface Table (1.3.6.1.2.1.2). It displays the interface entry for all the SNMP-monitorable interfaces on the device (as displayed on the graphic device display).

The example to the right shows the Info View.

The options on the menu allow you to use different views into the table:

• Full View. This displays every variable in the entry.

• Info View. This displays a selection of the more important variables.

• Usage (BPS) View. This displays the port usage variables.

• Utilisation (%) View. This displays the port utilisation variables.

Viewing/Changing Data

Some of the EMM menus allow you to inspect, chart and graph SNMP variables. Exactly how to perform these very powerful operations is described in the Getting Started documentation.

The example to the right shows a graph of Port Utilisation data.