Why is the link between the USG FLEX H and switch missing on Nebula topology?

Zyxel_Emily

Question:
Why is the link between the USG FLEX H and switch missing on Nebula topology?

Answer:
If the link between your firewall and switch is missing on the Nebula topology, it could be due to an issue with the configuration or services like LLDP (Link Layer Discovery Protocol) not being enabled.

1. Log in to the configuration interface of your USG FLEX H firewall.
2. Navigate to System > Advanced.
3. Ensure that LLDP is enabled.
4. Save the configuration and refresh your Nebula topology page.

Once LLDP is successfully enabled on both the firewall and the switch, the link should appear on the topology automatically.