I have found that at least one initiator is doing a NOP-out
during discovery phase. But the spec says that isn't allowed. Am I
3.3 iSCSI Session Types
iSCSI defines two types of sessions:
operational session - an unrestricted session.
Discovery-session - a session only opened for target
discovery. The target MUST ONLY accept text requests with
key and a logout request with reason "close the
session". All other requests MUST be rejected.
session type is defined during login with key=value parameter in
the login command.