More detail needs to be included in this lab and section. They don't allow the timers to be manipulated to show the delay changes in recovery. Also switch and router interfaces need to be swapped from auto configurations to manual duplex and speed settings. Auto sensing puts a huge kink in recovery. After having students research and assisting we have gotten the packet loss on link failures down to virtually zero packet loss! This is what the end user or customer would want to see not 2, 4, 8 packet loss like was being experienced in default lab configuration.

Also glbp and hsrp need to be available in packet tracer believe currently only one of the two items can be performed.