Hi,
The bandwidth and the maximum number of sessions of the NAT board(VSUF-80s, VSUI-160-Es, and VSUF-160) are controlled by licenses. For details about this specification, please consult the local pre-sales personnel. After the license is activated, you can control bandwidth resources of the NAT board from the command line.
Fefer to:https://support.huawei.com/hedex/hdx.do?docid=EDOC1100109721&id=EN-US_TASK_0172374486&lang=en
I hope it helps.