The resulting oplock level. This MUST be at least as permissive as the level that is specified by the server in its initial oplock break notification packet. For example, if the server specifies an SMB2_OPLOCK_LEVEL_II, the client can respond with an SMB2_OPLOCK_LEVEL_II or an SMB2_OPLOCK_LEVEL_NONE. Because SMB2_OPLOCK_LEVEL_BATCH is the highest oplock level, the server will never send a break from SMB2_OPLOCK_LEVEL_BATCH to SMB2_OPLOCK_LEVEL_BATCH. Thus this field MUST contain one of the following values:-based clients never use exclusive oplocks. There are no situations where an exclusive oplock would be used instead of using a SMB2_OPLOCK_LEVEL_BATCH.