A system for PIM vLAG fast link failover recovery includes a first vLAG switch connected to a second vLAG switch by an ISL. The system is computer based and has an input for receiving data conveying information about one or more arrival trains arriving at the switch yard and data conveying information about departure trains to depart the switch yard. The active zone has an anode and a cathode in opposing relation with an electrolyte therebetween and the non-active end region lacks the anode and cathode in opposing relation and extends away from the active zone to dissipate heat.