In one embodiment, a router is deployed on a local area network (LAN) in addition to any routers deployed on a wide area network (WAN) coupled with the LAN having the router. A service management device is coupled between the two routers. The service management device provides management processing,...http://www.google.de/patents/US7359984?utm_source=gb-gplus-sharePatent US7359984 - Management of network quality of service
