Bridging techniques for local area networks
Patent 4707827 Issued on November 17, 1987. Estimated Expiration Date: 
March 21, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 21, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesRouting mechanism with encapsulated FCS for a multi-ring local area network Patent #: 4577313 InventorsAssigneeApplicationNo. 06/842518 filed on 03/21/1986US Classes:370/405The other networks are ring or loop networksExaminersPrimary: Olms, Douglas W.Assistant: Chin, Wellington International ClassH04L 12/46 (20060101)AbstractA communications system includes one or more channels each comprising a plurality of LANs having multiple stations. The LANs of a particular channel are interconnected by a bridge interface, the respective bridge interfaces being connected by a backbone network. Each station is capable of transmitting a data packet including a header having either a 0 or 1 bridge flag, LAN stations being responsive only to data packets having a 0 bridge flag and bridge interfaces only to packets having a 1 bridge flag. Intra-LAN communications are thus effected by data packets having headers with 0 bridge flages while inter-LAN communications are effected by transmitting a packet with a 1 bridge flag from a source station which is coupled to the destination station by the bridge which also changes the bridge flag to 0. A special "broadcast" header is used to effect communications when the LAN or channel of the destination station is unknown. | |
