1. Purpose of the experiment

Comprehensively learn the business service monitoring function of SNMPc network management software, understand how to use network management software to engage in network management

2. Experimental content and design ideas

1) Operate the mapping database.

2) View the MIB data of the managed object.

3) Create and save long-term statistical data (requires a certain period of time, and can observe changes in data).

4) Set the alarm threshold (required to produce an effect).

5) Set the polling TCP service.

6) Set up sending email (optional).

7) Use the console.

3. Experimental use environment

Operating System: Microsoft Windows 7/8/10/11

Design environment: AT-SNMPc 7.0-CN

4. Experimental steps and debugging process

1. Operation mapping database

1.1 Selecting trees using maps

The SNMPc operation mapping database mainly includes the following contents:

Device management: SNMPc manages devices in the network by manipulating the mapping database. Users can add, delete, and modify device information in this module to monitor device status and performance in real time. At the same time, devices can also be managed in groups, which is convenient for users to manage different types of devices in batches.

On the left side of the software console, we can see the network and the network subtree of each network segment, and we can drag the device to move to other subnets.

Mapping management: SNMPc supports custom data mapping. Users can create custom data mapping rules as needed to obtain more useful information from SNMP devices. For example, map management can be used to collect indicators such as CPU usage, memory usage, and disk space of the server, so as to monitor the server in real time.

The functions that the switch can collect are: port information, port usage (BPS), port utilization (%), port byte/packet status, and Ethernet errors, bridge information, etc.

In addition to basic port information, port usage (BPS), and port utilization (%), the information that the router can view can also view information such as address table, routing table, and routing layer 3 of the ARP table; and such as Cisso, Protocol status information for Frame Relay, ATM, etc. specifications.

Resource management: The SNMPc operation mapping database also provides resource management functions, which can help users manage system resources. Users can add, delete, and modify resource information such as servers and applications, and monitor their status and performance indicators at the same time. In this way, resource-related problems can be discovered and solved in time, and the reliability and stability of the system can be improved.

2. Check the MIB data of the management object

On SNMPc, you can directly view the MIB selection tree and easily realize the management of network devices.

First of all, you need to know that SNMPc network management software will include network devices into the network topology through the ICMP protocol. If the device can be pinged by the local machine, then the device will be included in the network topology. SNMP service device, the local device can realize the network management operation of the device.

To operate the mapping database, we need to enable the device with SNMP service to realize the operation function.

2.1 View the properties of the mapping object

Select the device to be managed, right-click, and click Properties to view the basic information of the device

The bottom layer is that the data transmission and interaction between devices is completed by sending SNMP request and response packets.

2.2 Modify the parameters of the device

The essence is that the set operation for the managed network device can be directly realized on SNMPc, and the realization principle is to complete the data transfer and interaction between devices by sending SNMP request and response packets.

In this view, you can view the information of the OID object instance of the device, and you can try to modify its value. After the modification is completed, click ✔ on the top, and SNMPc will send the interaction of the SNMP protocol to complete the modification of the data set.

3. Keep long-term statistical data

SNMPc provides the event reporting function for managing network events, which can enable network administrators to more clearly detect the fluctuation of monitoring data of network management equipment within a period of time (hours, days, months...), and is to help network administrators realize information A great tool for surveillance.

3.1 Create a report

First insert a new report in the SNMPc trend report

In the option of inserting a new report, set the name of the report, the polling time, and the information of the network management equipment to be detected. Of course, before using the trend report, you need to select a specific object group in the MIB information base that needs to be detected.

In the trend report instance, you can customize the monitoring objects of the management equipment, and you can customize the monitoring objects for each equipment to achieve precision and differentiation.

In the export target column, select the way to export the event trend report. Here I choose to export to the web server. In the timetable on the right side of the export target column, select the length of time that the device needs to be detected. Here I set it as hourly.

3.2 View trend data in the graph window

Finally, after waiting for a period of time, try to collect the data in the report and choose to view the data of a certain day, which can realize the fluctuation of monitoring data within a period of time (hours, days, months...).

3.3 Viewing web reports

The report will be output to the browser, and the detected network management data can be seen intuitively

Realized the monitoring of monitoring data over a period of time (hours, days, months...), resource fluctuations of selected objects in the object group

4. Set the alarm threshold

The following are the steps for SNMPc to set the alarm threshold:

Select the device or resource to be monitored, and open the device property page in the SNMPc operation mapping database.

On the device properties page, click the Thresholds tab. In this tab, users can set alarm thresholds for various performance indicators.

4.1 Configure automatic alarm

4.2 Configure manual alarm

It is considered that the threshold value set for the alarm is smaller than the normal value, so that it will definitely alarm.

Save the settings and start threshold monitoring. At this point, SNMPc will automatically monitor the device or resource, and once the preset threshold is reached, an alarm mechanism will be triggered to notify the administrator in time.