ieee8021SpanningTreeBridgeMaxAge

The value that all Bridges use for MaxAge when this
Bridge is acting as the root.  Note that IEEE Std 802.1D-1998
specifies that the range for this parameter is related
to the value of ieee8021SpanningTreeBridgeHelloTime.  The
granularity of this timer is specified by IEEE Std 802.1D-1998 
to be 1 second.  An agent may return an SNMP badValue error
(or its equivalent if another protocol is used) if a set
is attempted to a value that is not a whole number of
seconds.
              
The value of this object MUST be retained across
reinitializations of the management system.

MIB

IEEE8021-SPANNING-TREE-MIB

OID

.1.3.111.2.802.1.1.3.1.1.1.13

Type

column

Access

readwrite

Status

current

Units

centi-seconds

Parent

ieee8021SpanningTreeEntry