Packets are received at a first boundary node of a long haul optical communication network which may either interconnect originating and destination communication networks or form an integral part of a single end-to-end network. Packets are reclassified to reflect a higher priority of transmission than...http://www.google.de/patents/US6680948?utm_source=gb-gplus-sharePatent US6680948 - System and method for transmitting packets over a long-haul optical network