Network Management System

A Network Management System (NMS) is a platform that centrally monitors network devices such as routers, switches, servers, firewalls, and wireless access points to maintain performance and stability. It provides real-time visibility into traffic, device status, and bandwidth usage, enabling quick identification of root causes when failures occur.

NMS focuses on failure prevention and problem detection to minimize performance degradation and ensure consistent service quality (QoS). By using WhaTap NMS, organizations can operate IT infrastructure efficiently and maintain business continuity.

Key advantages

• Extensive multi-vendor support

  Based on the standard SNMP protocol, it provides strong compatibility that is not limited to specific manufacturers. From global vendors such as Cisco and Juniper to domestic equipment, it supports a flexible operating environment where all network devices supporting SNMP can be integrated and managed with a single WhaTap NMS.

• Efficient MIB management and data retrieval

  It has a built-in intuitive MIB (Management Information Base) browser that makes it easy to check and verify vast amounts of data provided by each network device. In particular, if a specific manufacturer's private MIB or new device MIB file that is not provided by the system by default is required, it supports the ability for users to upload and manage files directly.

• OID list provision

  It systematically selects and provides key OID (Object Identifier) items that are frequently used in operational sites in list form. It minimizes the hassle of administrators having to directly search and verify individual OIDs within complex MIB structures, and supports rapid identification and application of performance indicators essential for setting thresholds for each device and interface, maximizing management optimization and operational efficiency.

• Flexible installation environment and hybrid infrastructure support

  It supports various operating systems (OS) to minimize installation environment constraints and provides deployment methods optimized for customers' infrastructure environments such as on-premise and cloud. Through this, an uninterrupted monitoring system can be built not only in closed internal networks but also in complex hybrid cloud environments, and it supports flexible deployment models optimized for corporate security policies and network structures.

Key features

• Device and performance real-time monitoring (SNMP Polling)

  It periodically collects key operational indicators and performance data of network devices to maintain optimal operating conditions. It precisely monitors the status of hardware resources such as CPU load, memory usage, and session occupancy, and identifies the data inflow/outflow (Throughput) for each interface and the physical connection status (Link Up/Down) of ports in real time to prevent network performance bottlenecks in advance.

• Hierarchy structure and topology map (Hierarchy & Topology)

  It provides management intuitiveness by visualizing the affiliation and connection status of network assets. While organizing devices into tree structures by region, building, and business service units, the overall network configuration and the scope of impact in case of failure can be immediately identified by implementing the physical and logical connection relationships between devices as a topology map.

• Availability and quality check (Health Check)

  It constantly checks whether network devices and operating services are operating normally based on responsiveness. It confirms the real-time survival (Alive) of devices through ICMP (Ping) and TCP protocols, and manages to ensure that user service quality (SLA) does not deteriorate by analyzing response time (RTT) and network delay variation (JITTER) values.

• Real-time event and log management

  It analyzes SNMP Trap and Syslog messages generated from devices in real time to immediately deliver failure situations to administrators, and supports an analysis environment where the cause of failure at a specific point in time can be precisely searched and tracked based on the stored event history.

• Auto Discovery

  The system identifies itself without the hassle of manually registering complex and vast network environments one by one. It utilizes the SNMP protocol to scan devices within the network and automatically database device types, interface configurations, and detailed specifications to shorten the initial construction time.

Data collection scope

WhaTap NMS (Network Management System) supports the following network data collection methods.

• SNMP Polling

  It periodically requests and collects network device status and performance data and supports all SNMP v1/v2c/v3 protocols.

• SNMP Trap

  It collects and processes event and notification information generated from network devices and supports SNMP Trap v1/v2c/v3 protocols.

• Syslog

  It collects log data generated from network devices and analyzes it in real time.

• ICMP

  It measures Alive, RTT, Jitter, etc. of devices using the ICMP protocol.

• TCP

  It measures Alive and RTT of devices or services based on TCP ports.

Manager main services

NMS collects and refines agent data from the manager and performs pre-configuration and testing before integration with WhaTap.

Web-based Management Console & APIs

uvicorn.service is a management UI and API service that provides overall operational management functions such as NMS configuration management, system status check, and configuration backup and recovery in a local environment.

Note

Generally, manager access is not required for NMS operation. If access is required, please contact the WhaTap technical team.

• Ports used: HTTP 5000, HTTPS 8443 (when configured)

• Service start and stop: You can start, stop, or restart uvicorn.service with the following command.

  systemctl {start|restart|stop} uvicorn.service

NMS engine

nmscore.service is a service that acts as the engine of the Network Management System (NMS). It provides network device and traffic monitoring, management, and event processing functions.

• Ports used:

  • SNMP Polling: UDP 161 (default)
  • SNMP Trap: UDP 162 (default)
  • Syslog: UDP 514 (default)

• Service start and stop: You can start, stop, or restart nmscore.service with the following command.

  systemctl {start|restart|stop} nmscore.service

Health Check

icmptcphealthd.service performs ICMP and TCP-based Health Check on network devices and continuously monitors device availability and connection status through periodic status checks.

• Service start and stop: You can start, stop, or restart icmptcphealthd.service with the following command.

  systemctl {start|restart|stop} icmptcphealthd.service