The maximum age of spanning tree protocol information learned from
the network on any bridge port before it is discarded. This value is used
by this bridge and all the other bridges, when this bridge is the root
bridge of the spanning tree topology. The following relationships are
enforced as required by the IEEE 802.1d standards document.
2 *(bridgeForwardDelay -1.0seconds) >= bridgeMaxAge,
bridgeMaxAge >= 2 * bridgeHelloTime + 1.0 seconds.
DESCRIPTION