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Thu thập dữ liệu và chuyển tiếp thông tin đến một hệ thống điều hành máy chủ. D. Nó chỉ đơn giản là thu thập dữ liệu, và bạn phải tự tìm kiếm thông tin bằng cách sử dụng một NMS. 3. Những gì bạn cấu hình trên các thiết bị SNMP để cho phép họ gửi tin nhắn cho các NMS? Bẫy A. B. C. Cảnh báo MIBs D. PASS 4. Một số SNMP điển hình là gì | Chapter 11 Using Monitoring Agents 287 Software monitoring of server hardware Software-based hardware monitoring agents provide a variety of tools for administrators. Most software monitoring solutions include the following capabilities Monitoring the temperature status of the computer Monitoring all server-related services including the SNMP MIB Monitoring the status of the server s disk drives and RAID arrays Monitoring the network interface card for packets received and transmitted with errors and packets discarded. With most monitoring solutions the administrator can configure the software to send notifications when there are hardware errors or when certain thresholds are exceeded. Figure 11-2 shows how these signals are sent. Figure 11-2 Monitoring of hardware environmental factors within the server Third-Party Agents Third-party agents provide sophisticated analysis of your server and other devices on your network. These tools help you to diagnose troubleshoot and resolve problems quickly. Examples of third-party monitoring programs include HP OpenView Computer Associates Unicenter TNG Cabletron Spectrum and IBM Tivoli. 288 Part IV Proactive Maintenance RMON MIB The Remote Network Monitoring Management Information Base RMON MIB defines the next generation of network monitoring. It uses more comprehensive network fault diagnosis planning and performance tuning features than any current monitoring solution. It uses SNMP and its standard MIB design to provide multivendor interoperability between monitoring products and management stations allowing users to mix and match network monitors and management stations from different vendors. The RMON MIB enhances the features of typical remote monitoring agents with several new features such as additional packet error counters more flexible historical trend graphing and statistical analysis an Ethernet-level traffic matrix more comprehensive alarms more powerful filtering to capture and analyze individual packets RMON .