With IPHost Network Monitor you can run simple snmp requests against a Huawei device in your network.
ethIntDuplexMode
eth Interface Duplex Mode
1.3.6.1.4.1.207.8.4.4.4.23.1.1.4
The duplex mode of this Ethernet interface. The value unknown is returned when the interface cannot or has not yet made a determination of its duplex mode, or when the interface cannot be found.
Back to ALLIEDTELESYN-MIB MIB page.
IPHost Network monitor allows you to monitor ethIntDuplexMode on Allied Telesis device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Allied Telesis switches right now.