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Be a Commerce Partner |
ISP Planet
Network
Management System Series - SNMP
ToolChest |
Performance Monitoring
Another ToolChest app, NetDelayPlus, uses periodic polling to keep tabs
on device performance. This tool can operate in two modes:
Measure the network layer delay (right) between the NetDelayPlus host and a list of IP devices, or |
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Measure the transport layer delay (right) experienced by every client with at least one established TCP connection to a specified server, for all ports or a selected set of ports. |
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In either mode, this tool continuously displays real-time results and flags any value which exceeds a single configurable threshold. Use this tool to spot performance degradation -- for example, monitor a web server and watch for clients that experience poor response time.
Other tools included in the Gold Edition (not tested) provide additional performance monitoring. The CiscoPingTool measures network delay between Cisco devices, creating daily summary reports. The RMONv2 Configurator provides setup capability for remote monitoring probes, and the EtherScope tool periodically collects Ethernet or Token Ring stats aggregated by these probes.
Unfortunately, most ToolChest apps do not include printed report generation. Real-time results are displayed graphically, but the only way to obtain hard-copy is screen-printing. HTML reports generated by DiscoverPlus and the CiscoPingTool are the only exceptions. According to Zeltserman, print capability will be added in a future release.
Final Words
The SNMP ToolChest is aptly named: It's a collection of individual tools,
each appropriate for a specific task. If you don't find exactly the tool
you're looking for, new and extended tools are easily created through
Tcl scripting. Some customers say they use SNMP ToolChest to complement
more comprehensive network management systems precisely because of this
flexibility.
ISP admins looking for a few handy tools they can customize are most
likely to appreciate this product. We recommend those interested start
by downloading the freely available SmartBrowser. But SNMP ToolChest Silver
Edition is not yet robust or comprehensive. Admins seeking a full-fledged,
tightly integrated SNMP NMS should look elsewhere.
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SNMP ToolChest Silver Edition |
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| Pt. 4: Status Monitoring | |
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Pt.
5: Performance Monitoring / Final Words
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