This read-only integer (1-65535) reports the maximum number of outstanding Ready-to-Transfer requests permitted per task within this session. An admin reviews this negotiated value to understand how much command pipelining the session allows, which affects achievable write throughput on high-latency links. For example, a low negotiated value here on a long-distance iSCSI link would help explain lower-than-expected write performance compared to a local-network session.