Simple definition
NVMe/TCP carries NVMe storage commands over standard TCP/IP networks to access remote volumes.
Purpose and use
NVMe/TCP provides access to an NVMe subsystem across a compatible TCP/IP network.
How does it work?
Commands pass between an initiator and remote controller without requiring an RDMA transport.
Example and verification
Check IP reachability, discovery, namespaces and path behavior under load.
Points to watch
Not requiring RDMA does not remove network capacity, latency and protection requirements.
In short
Evaluate existing Ethernet infrastructure for the intended storage workload.