| The topics covered in this chapter prepare the Netadmin for deploying an SNMP-based advanced network-monitoring system (NMS). The NMS provides trending for network parameters including, but not limited to, interface traffic, CPU and memory utilization, and VPN and firewall connections. Netadmins should be able to perform the following performance-monitoring tasks: Deploy a Linux-based network-monitoring system to monitor interface traffic through Cisco devices, including routers, switches, VPN concentrators, and PIX Firewalls Deploy a Windows-based network-monitoring system to monitor interface traffic through Cisco devices, including routers, switches, VPN concentrators, and PIX Firewalls Use the trending feature of a network-monitoring system for long-term network analysis and capacity planning
Table 6-8 provides details of the tools discussed in this chapter. Table 6-8. Performance-Monitoring Tools Discussed in This ChapterTool | Function | Supported OS | Installable Files Source | Additional Documentation Sources/Notes |
|---|
MRTG | Trending of network traffic and other parameters through SNMP | Windows and Linux | http://www.mrtg.org | Documentation in HTML format included with the installation (../doc/mrtg/html/) README and other text files located in ../doc/mrtg Collection of mrtg.cfg templates at http://www.somix.com/
| RRDTool | Back-end database and graphing tool | Windows and Linux | http://www.rrdtool.org | | Cricket | Improved version of MRTG | Windows and Linux | http://cricket.sourceforge.net | http://cricket.sourceforge.net | Cacti | RRDTool-based trending tool | Linux | http://www.cacti.net/ | http://www.cacti.net/ | Percival | High-performance version of Cricket | Linux | http://percival.sourceforge.net | http://percival.sourceforge.net | Snmpwalk | Command-line tool for querying SNMP-enabled devices | Windows and Linux | http://www.net-snmp.org | | Cisco MIB Locator | Web-based tool for browsing MIBs and OIDs for Cisco devices | | | http://www.cisco.com/go/mibs |
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