A system, device, and method for reducing the number of multicast routes maintained in a multicast routing information base aggregates a group of multicast routes and installs a single policy route for the group of multicast routes. The policy route is utilized as a default multicast route when no more-specific...http://www.google.de/patents/US6791980?utm_source=gb-gplus-sharePatent US6791980 - System, device, and method for reducing the number of multicast routes maintained in a multicast routing information base