With IPHost Network Monitor you can run simple snmp requests against a Huawei device in your network.
atiPortDuplexStatus
ati Port Duplex Status
1.3.6.1.4.1.207.8.3.2.1.3
Port duplex status.
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IPHost Network monitor allows you to monitor atiPortDuplexStatus 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 iMAP chassis right now.