i just wanted to get an idea of what you guys do for this. basically we have three sites each with thier own Pub and Sub at the moment. we would like to redesign to have all in one cluster. Simply put, we would like all sites to be able to still communicate with each other even though one of the main sites goes down.
my question is more from a WAN prospective. to enable this to happen im assuming that you need multiple paths from either the router to router end or from the carrier end, more like a mesh network.
what do carriers normally provide for this type of situation? would a MPLS type carrier infrastruture fit the requirement ( i know thats a bit general)
any pointers with respect to this would be great
PS presently have a Hub and Spoke topology