spanningTreeMaxAge 1.3.6.1.4.1.8691.2.8.1.3.15.1.2.4

The max. age of spanning tree protocol. Range is 6~40. A Bridge shall enforce the following relationships: 2 x (Forward Delay - 1) >= Max Age Max Age >= 2 x (Hello Time + 1). Note: NPort 6150, 6250, 6250-S-SC, 6250-M-SC do not support write access.