When connecting multiple NICs from a server to a switch and eventually to an iSCSI target, each NIC receives its own IP address, and an iSCSI Initiator-Target link is established for each NIC. The OS

Multipathing is a storage technology that allows a host to establish and utilize multiple independent physical paths, each typically involving a distinct NIC with its own IP address, to connect to a single logical storage unit (LUN). The operating system then uses intelligent policies, such as round-robin, to distribute I/O across these redundant paths, thereby enhancing both storage availability and performance by load balancing.

NIC teaming combines multiple network interface cards into a single logical interface, typically presenting one IP address to the OS for general network traffic, which contradicts the scenario where each NIC receives its own IP address for separate iSCSI links.

Link aggregation, often implemented with protocols like LACP, bundles multiple physical network links into one logical channel and usually operates with a single logical IP address to increase bandwidth and provide network redundancy, not for establishing separate IP-addressed paths to a single storage LUN.

Port grouping is a general term often referring to network interface configuration or switch port aggregation, but it does not specifically describe the architecture of using multiple, independently addressed NICs for redundant and load-balanced iSCSI storage access.