Shulou(Shulou.com)06/02 Report--

This article mainly explains "what is the default port number of snmp". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what is the default port number of snmp".

The snmp port numbers are generally snmp get UDP 161 and snmp trap udp 162; standard SNMP services use ports 161,162, and vendor-private implementations typically use ports 199,391,705 and 1993.

This article operating environment: windows7 system, Dell G3 computer.

What is the snmp port number?

The ports of SNMP are generally: snmp get UDP 161,162snmp trap udp

Standard SNMP services use ports 161,162, and vendor-owned implementations typically use ports 199,391,705 and 1993.

In typical SNMP usage, many systems are managed, and one or more systems manage them. Each managed system runs a software component called agent, and reports information to the management system through SNMP.

Basically, SNMP agents present management data as variables. The management system retrieves information through GET,GETNEXT and GETBULK protocol instructions, or the agent uses TRAP or INFORM to transmit data without being questioned. The management system can also send requests for configuration updates or control to achieve the purpose of actively managing the system through SET protocol instructions.

Configuration and control instructions are used only when the basic structure of the network needs to be changed, while monitoring instructions are usually routine.

Extended data

Using SNMP for network management requires the following important parts: management base station, management agent, management information base and network management tools.

1. The management base station is usually an independent device, which is used as the user interface for network managers to manage the network. The base station must be equipped with management software, a user interface that the administrator can use and a database to obtain information from MIB. At the same time, it should have the ability to issue management commands to the base station for network management.

2. A management agent is a kind of network devices, such as hosts, bridges, routers and hubs, which must be able to receive information from the management base station, and their status must be monitored by the management base station. The management agent performs the corresponding operation in response to the request of the base station and can also send information to the base station without a request.

3. MIB is a collection of objects, which represents the resources and devices that can be managed in the network. Each object is basically a data variable that represents information about one aspect of the object being managed.

4. The last aspect is the management protocol, that is, the basic function of SNMP,SNMP is to obtain, set and receive unexpected information sent by the agent. Acquisition refers to the request sent by the base station, and the agent sends back the corresponding data according to this request, and the setting is the value of the management object (that is, the agent) set by the base station. The unexpected information sent by the receiving agent means that the agent can report the unexpected situation to the base station without a request.

Thank you for reading, the above is the content of "what is the default port number of snmp". After the study of this article, I believe you have a deeper understanding of what the default port number of snmp is, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.