MARITIME TACTICAL WIDE AREA NETWORKING (MTWAN ...

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Uncontrolled copy when printedUNCLASSIFIEDACP 200(B) Vol2processes (such as network discovery) must be allowed to travel further than the unit‘s AreaBorder router.13. The NOC will monitor and provide a consolidated view of the health of the networkbackbone (Area 0). The view will also include the status of MNTG application servers. Theview will be updated at least every 30 minutes and be accessible to units network managersvia a Web browser.14. Under the direction or co-ordination of the NOC, units network managers willconduct the analysis of network statistics to identify potential problems, and to anticipate andplan for additional hosts and services.15. An FTP server may be provided at the NOC to support the collection and storage ofsoftware and configuration information for all configurable network devices and serviceswithin the <strong>MTWAN</strong> in support of a specific exercise or operation.NETWORK MANAGEMENT TOOLS SET –UP16. To establish NM tools discussed above, the following installation and set-up isrequired:2A-2 OriginalUNCLASSIFIED
Uncontrolled copy when printedUNCLASSIFIEDACP 200(B) Vol2a. Set up an engineering order wire to enable network management coordination;b. Select a suitable computer to be the NM station and install NM software. If thecomputer is being used for other applications, ensure that these will not beaffected by the NM functionality;c. Set up a Web server on the NM station to let users view the NM informationusing a Web browser. Enable Web server security to grant users ―read-only‖access to the Web pages;d. Enable SNMP on all hosts and set their ―read-only‖ Community Name (editingSNMP Agent‘s Management Information Base {MIB} is not allowed);e. Use the ―Lookup‖ tool provided by the NM software to resolve IP addresses andnames (forward and reverse mapping) of the local hosts using DNS. Rectify anyDNS problems encountered;f. Enable the Network Mapping function of the NM to discover the local networkup to the local Area Border routers and generate a topology map. The map willinclude all the active interfaces of the routers. Set the default polling interval forthe network discovery and monitoring to 30 minutes. For routers and servers,which are critical components of the network, the polling interval should be setto no longer than 10 minutes;g. Enable the monitoring function of the NM software to monitor the status oflocal hosts, the services running on those hosts and the WAN links. Colours andsymbols will be used to indicate any changes to the network; andh. Enable the collection of local network statistics.TROUBLESHOOTING17. The most common problems that occur in an operational IP network are:a. Slow Responses;b. Connectivity Problems; andc. Application Problem.SLOW RESPONSIVENESS18. When an application is running slowly, the cause of the problem may be a congestednetwork or an overloaded server.19. Use NM tools to collect and analyse network statistics to determine whether thenetwork is congested. If it is, identify hosts and applications that are causing the congestionand then co-ordinate with the NOC to shut down non-essential bandwidth users.2A-3 OriginalUNCLASSIFIED
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