You can influence that decision by changing one of the attributes that is taken into consideration before the AS_PATH is. The Best Path Selection algorithm follows the following order in selecting the best path (assuming the preconditions are met, i....
One scenario (if not the only) is to free up some space in the MAC table. Be aware though, doing so causes flooding. That's why it is recommanded to do it on a VLAN with two ports only. That way, when one port receives a frame, it is flooded to the o...
