With IPHost Network Monitor you can run simple snmp requests against a Huawei device in your network.
dot1wOldDesignatedRoot
dot1w Old Designated Root
1.3.6.1.4.1.207.1.4.167.119.1.3.1.12
The bridge identifier of the old root of the spanning tree as determined by the Spanning Tree Protocol as executed by this node.
Back to AT-GS950-8-MIB MIB page.
IPHost Network monitor allows you to monitor dot1wOldDesignatedRoot 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 firewalls right now.