STP topology change. MAC table aging timer change for how long?
Having a look at CCIE spanning-tree training videos....
The MAC aging timer says how long an inactive mac address stays on the MAC address (MA) table.
A topology change reduces this aging timer to Forwarding Delay timer (assuming its bigger than the Forwarding Delay).
For how long does this aging timer reduction last? How long until the aging timer gets back to the previous value? (300s assuming default)
2nd little question:
Does the topology change aging timer show up in output of "show mac address-table aging-time"? Any command to see if the reducing aging timer is "in effect" at the moment?