What is the actual use-case for Passive-Inteface on a Link-State Router compared to other forms of network security?

I am studying Networks and Routing as part of developing skills in IT and Cybersecurity, and I have learned about the Passive Interface mode for, say, OSFP. Passive Interface disables the sending of Hello Packets along certain interfaces, … Continue reading What is the actual use-case for Passive-Inteface on a Link-State Router compared to other forms of network security?