• Network management protocols were developed to help network administrators keep track of the health and performance of modern, complex networks.
  • This data collected is processed and graphically displayed via GUI, so that network operators can use the information provided in managing the network’s activity.

Network management protocols provide standards and procedures for observing, managing, and analysing network environments. Network management protocols are designed for maintaining and governing the network. Specifically, they determine the policies and procedures required for monitoring, managing, and maintaining a computer network. This bolg will introduce you to 6 key network monitoring protocols and you’ll learn how these protocols help ensure your network operates at its optimal capacity.

Simple network management protocol (SNMP)

The most common types of network management protocols are SNMP and ICMP.

SNMP was established in 1988. It has become the industry standard for monitoring and managing network devices. Most network devices come equipped with SNMP agents because of its simplicity and broad support from most major network device vendors. SNMP is used for both active monitoring (injecting test packets into the network) and passive monitoring (periodic polling of devices).

Internet control message protocol (ICMP)

Unlike data exchange protocols like SNMP, ICMP is an auxiliary protocol for IPv4 that specialises in sending error messages and operational information in IP networks. ICMP enables network admins to diagnose and rectify issues that prevent data packets from reaching their intended destinations as soon as possible.

Also read: What are the key protocols for effective network monitoring?

Cisco discovery protocol (CDP)

The CDP is a proprietary device discovery protocol developed by Cisco Systems and is used to manage networks that primarily comprise Cisco-manufactured devices. It eliminates the need for manual documentation of device details and connections, which is beneficial in large-scale or complex network environments that primarily contain Cisco devices. It’s best used in environments where the network predominantly comprises Cisco devices and where quick visualisation and understanding of the network infrastructure are required.

NetFlow and Streaming telemetry

NetFlow is a network protocol developed by Cisco Systems that collects metadata on IP traffic flows traversing a network device, such as a router, switch, or host. And streaming telemetry uses a publish or subscribe model where network devices push data continuously based on set intervals or specific events. Data is transmitted automatically by structured formats like JSON or XML via transport protocols.

However, streaming telemetry isn’t as universally supported as traditional protocols. It requires modern infrastructure designed to handle continuous data streams.

Also read: The key role of network protocols in modern communications

Syslog

Syslog is a standardised protocol used for message logging. It allows network devices to send event messages to a centralised logging server, known as a Syslog server or collector. Developed in the 1980s, Syslog has become a critical component in network management, providing a simple and scalable method for collecting and analysing log data from various network devices. Syslog is essential for network monitoring because it provides real-time visibility into network operations and security. By centralising log data, network administrators can efficiently monitor and analyse events across the entire network, identify potential issues, and respond to security threats.

Network Monitoring Protocols are important

Key functions of network monitoring protocols include data collection and transmission, network analysis and management, and device configuration and maintenance. It can help maintain your network environment’s health, security, and efficiency in various situations.