Well .. to make things easier there is a cli which will tell you that diameter of X will give what values for hello , dead and max age . This is available in all cat based switches . Please see below :
SW8#test spanning-tree diameter 2 diameter 2 and hello time 2 gives max age = 10 and forward delay 7 SW8# SW8#test spanning-tree diameter 3 diameter 3 and hello time 2 gives max age = 12 and forward delay 9 SW8# So you can play around and set the diameter accordingly . Regards Gaurav Madan CCIE On Wed, Apr 14, 2010 at 6:28 PM, Syed Zaidi <[email protected]> wrote: > This is an extract from Cisco configuration guide for Catalyst 3560.. how > can setting L2 diameter help us in CCIE lab? Are the candidate tested on > this in relation to reducing convergence timers? > Use the diameter keyword to specify the Layer 2 network diameter (that is, > the maximum number of switch hops between any two end stations in the > Layer 2 network). When you specify the network diameter, the switch > automatically sets an optimal hello time, forward-delay time, and > maximum-age time for a network of that diameter, which can significantly > reduce the convergence time. You can use the hello keyword to override the > automatically calculated hello time. > Regards, > Syed > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
