With IPHost Network Monitor you can run simple snmp requests against a Huawei device in your network.
polarityLED
polarity LED
1.3.6.1.4.1.207.8.1.3.1.1.10
This object reflects the current actual polarity state of the port. The notreversed value means that the port-to-device cable connection is properly polarized. The reversed value means that the cable connection has reversed polarity. This object applies only to UTP (twisted pair) and fiber optic ports (not AUI or BNC ports).
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IPHost Network monitor allows you to monitor polarityLED 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 access points right now.