With IPHost Network Monitor you can run simple snmp requests against a Huawei device in your network.
dot1sMstiTimeSinceTopologyChange
dot1s Msti Time Since Topology Change
1.3.6.1.4.1.207.1.4.167.118.1.4.1.6
The time (in hundredths of a second) since the TcWhile Timer for any port in this Bridge was non-zero for this spanning tree instance.
Back to AT-GS950-8-MIB MIB page.
IPHost Network monitor allows you to monitor dot1sMstiTimeSinceTopologyChange 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.