Methods and systems for detecting and correcting chromatic aberration and purple fringing are disclosed. The PDP further includes a plurality of cells at crossing portions between the first and second pluralities of electrodes and the third plurality of electrodes. The blocking voltage is generated at a level that inhibits inadvertent programming of an unselected memory cell. IGP and RHI are used to propagate routes to an edge router and BGP and IP Anycast are used for site-to-site recovery and load balancing between data center sites.