Network administration aims to manage, monitor, maintain, secure, and service an organization’s network. However, the specific tasks and procedures may vary depending on the size and type of an organization.
What does network administration consist of?
Network administration primarily consists of, but isn’t limited to, network monitoring, network management, and maintaining network quality and security.
Network monitoring is essential to monitor unusual traffic patterns, the health of the network infrastructure, and devices connected to the network. It helps detect abnormal activity, network issues, or excessive bandwidth consumption early on and take preventative and remedial actions to uphold the network quality and security. Network management encompasses multiple administrative functions, including network planning, implementation, and configuration. It involves:
- replanning the network based on changing organizational requirements
- implementing the network for maximum efficiency
- configuring various networking and security protocols
- applying security patches and updating the firmware of the networking infrastructure, such as routers, hubs, switches, and firewalls
- assessing the network for weaknesses
- evaluating quality and capacity to increase or decrease network capacity and manage resource wastage
Network administration key areas
- Fault management: Monitors the network infrastructure to identify and address issues potentially affecting the network. It uses standard protocols such as Simple Network Management Protocol (SNMP) to monitor network infrastructure.
- Configuration management: Tracks configuration and related changes of network components, including switches, firewalls, hubs, and routers. As unplanned changes can affect the network drastically and potentially cause downtime, it’s essential to streamline, track, and manage configuration changes.
- Account management: Tracks network utilization to bill and estimate the usage of various departments of an organization. In smaller organizations, billing may be irrelevant. However, monitoring utilization helps spot specific trends and inefficiencies.
- Performance management: Focuses on maintaining service levels needed for efficient operations. It collects various metrics and analytical data to continually assess network performance, including response times, packet loss, and link utilization.
- Security management: Aims to ensure only authorized activity and authenticated devices and users can access the network. It employs several disciplines such as threat management, intrusion detection, and firewall management. It also collects and analyzes relevant network information to detect and block malicious or suspicious activity.