Which of the following is the BEST method to isolate iSCSI network traffic?

WWPN Zoning is a security mechanism used in Fibre Channel Storage Area Networks (SANs) to control access at the port level, which is not applicable to iSCSI networks.

WWNN Zoning is a security feature also specific to Fibre Channel SANs, used to control access at the node level, and does not apply to iSCSI network traffic isolation.

iSCSI operates over standard Ethernet networks, making VLANs (Virtual Local Area Networks) the ideal solution for logically segmenting and isolating its traffic. A dedicated VLAN ensures that iSCSI packets travel on their own broadcast domain, preventing interference from other network traffic, enhancing security, and optimizing performance for storage communication.

LUN Masking is a storage array feature that controls which servers can access specific Logical Unit Numbers (LUNs) at the storage level, providing data access control rather than network traffic isolation.