With IPHost Network Monitor you can run simple snmp requests against a Huawei device in your network.
dot1dStpExtEntry
dot1d Stp Ext Entry
1.3.6.1.4.1.207.1.4.167.116.2.3.1
Per Virtual Context Stp Scalars
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IPHost Network monitor allows you to monitor dot1dStpExtEntry 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 VPN routers right now.