Abstract:In Software Defined Networks, where the network control plane can be programmed by updating switch rules, consistently updating switches is a challenging problem. In a per-packet consistent update (PPC), a packet either matches the new rules added or the old rules to be deleted, throughout the network, but not a combination of both. PPC must be preserved during an update to prevent packet drops and loops, provide waypoint invariance and to apply policies consistently. No algorithm exists today that confines ch… Show more
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