Patent ID: 8619552
Filing Date: 2013-12-31
Classification: H04Q

Abstract:
1. A method comprising: monitoring a trunk comprising a plurality of physical ports of a first physical routing device that is part of a virtual router, wherein a respective port priority value is associated with each of said physical ports and wherein higher ranked ports of said physical ports have respective port priority values greater than that of lower ranked ports of said physical ports, wherein a trunk priority value is associated with said trunk, wherein said trunk priority value is greater than the sum of port priority values for all physical ports in said plurality of physical ports, and wherein a first device priority value is associated with said first physical routing device; decrementing said first device priority value by a first port priority value if a first port of said physical ports is deemed out-of-service, and decrementing said first device priority value by a second port priority value if a second port of said physical ports is deemed out-of-service, wherein said first port priority value is different from said second port priority value; decrementing said first device priority value by said trunk priority value if said all physical ports in said plurality of physical ports are deemed out-of-service; and implementing a corrective action if, after said first device priority value is decremented, said first device priority value fails to satisfy a condition, wherein said corrective action comprises routing network traffic using a second physical routing device that is also part of said virtual router instead of routing network traffic using said first physical routing device.