The invention relates to multi-device link aggregation (MDLA). A first MDLA device is connected to a second MDLA device by an MDLA internal link. Each of the interconnected first and second MDLA devices is connected to at least one common link aggregation (LAG) partner device by an aggregated link, respectively....http://www.google.ca/patents/US20030061533?utm_source=gb-gplus-sharePatent US20030061533 - Multi-device link aggregation