NetApp
7-mode/HA pair/V-Series : Configuration : Protocols : iSCSI : Understanding iSCSI : What iSCSI nodes are

What iSCSI nodes are
In an iSCSI network, there are two types of nodes: targets and initiators. Targets are storage systems, and initiators are hosts. Switches, routers, and ports are TCP/IP devices only, and are not iSCSI nodes.