What are WWNs in Fibre Channel networks used for?

In Fibre Channel networks, World Wide Names (WWNs) serve as unique identifiers for devices. Each WWN is globally unique to ensure that no two devices can have the same identifier within the Fibre Channel topology. This uniqueness is crucial for the correct operation of the network, as it allows for the accurate identification and communication between various storage devices, hosts, and switches. The use of WWNs facilitates device management, configuration, and security within the Fibre Channel environment, enabling seamless data transmission and interaction across the network. This standardization simplifies the management of devices and helps maintain the integrity and efficiency of storage architectures.