USG FLEX H Series – Device LLDP

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With the latest uOS firmware update, LLDP (Link Layer Discovery Protocol) functionality is now supported on the USG FLEX H Series devices, enhancing their capability for network discovery and device monitoring. This feature enables devices to automatically share and receive information about connected devices in the network, improving visibility and simplifying network management.

What is LLDP?

LLDP is a standardized protocol used for device discovery. When enabled, LLDP allows a device to send its details to neighboring devices. This is useful for network administrators who want to have a quick overview of connected devices and their configurations. The protocol operates at Layer 2 (Data Link Layer) and is especially valuable for managing large or complex networks.

LLDP Capabilities in the USG FLEX H Series Devices

• Device Information Sharing: When LLDP is enabled on the USG FLEX H Series device, it broadcasts key device information to any directly connected devices. This includes:
  • Model Name
  • Host Name
  • Firmware Version
  • Port and IP Address
  • MAC Address
• Neighbor Information Reception: The USG FLEX H Series device can also receive information from neighboring devices that have LLDP enabled. This incoming information is displayed in a structured format, allowing administrators to quickly gather details about each connected device.

Benefits of LLDP on the USG FLEX H Series Devices

1. Enhanced Network Visibility: Administrators can view essential details of devices connected to the network in one place, aiding in faster troubleshooting and network mapping.
2. Easy Device Discovery: LLDP provides a unified view of device information across the network, making it easy to discover and manage devices without manual intervention.
3. Improved Topology Mapping: LLDP information integrates into the Nebula Control Center’s (NCC) site-wide topology view, allowing administrators to see connections visually.

How to Enable LLDP on the USG FLEX H Series Devices

LLDP is a simple toggle feature accessible via the device’s settings. Follow these steps to enable LLDP:

1. Navigate to System > Advanced settings on the GUI.
2. Enable LLDP: Locate the LLDP setting, which is enabled by default with firmware version 1.30

After enabling LLDP, you can view the device details it shares under the Neighbor Devices section on devices that support LLDP, including the topology view in NCC.

Compatibility and Device Requirements

• Once enabled, LLDP allows the USG FLEX H Series devices to communicate their information to neighboring devices like ATP or USG FLEX models, which can then display this data within their own LLDP tables.

Conclusion

The addition of LLDP in the USG FLEX H Series devices brings device discovery and network visibility features that simplify network management and troubleshooting. With the topology integration in NCC and device-to-device information sharing, LLDP provides a critical tool for maintaining optimal network health and configuration clarity.