Virtual network architecture for connectionless LAN backbone
July 15, 2016. 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 ReferencesNetwork system System and method for interconnecting local area networks Communication control system using an asynchronous transfer mode network Local area network transmission emulator Communications system between LAN's of different types Multicast address in a local area network where the local area network has inadequate multicast addressing capability Method and apparatus for reducing the transmission of repetitive braodcast datagrams over communication links Inter-local area network connecting system Topology independent broadcast of cells in an ATM network or the like Flexible scheduling mechanism for ATM switches InventorsAssigneeApplicationNo. 683570 filed on 07/15/1996US Classes:709/238, COMPUTER-TO-COMPUTER DATA ROUTING709/220, NETWORK COMPUTER CONFIGURING709/221, Reconfiguring709/230COMPUTER-TO-COMPUTER PROTOCOL IMPLEMENTINGExaminersPrimary: Geckil, Mehmet B.Attorney, Agent or FirmInternational ClassG06F 015/16AbstractNetwork traffic management is achieved based on automatically setting up a plurality of virtual networks (VNETs) within a single large virtual LAN. Multicast/broadcast traffic is confined to the VNET of the source, without imposing constraints on layer two addressing within the virtual LAN. VNETs are domains of users of a virtual LAN which include members of logical networks defined at layer three or higher. One method includes transferring a multi-destination packet originating from a particular node in the virtual LAN by tunnelling across a connectionless backbone network to a virtual net server. The virtual net server translates the multi-destination packet to a plurality of tunneled messages identifying nodes authorized to receive multi-destination packets from members of the particular VNET which originated the packet. The tunneled messages are then forwarded from the virtual net server to the authorized nodes.This way, multi-destination packets, such as advertisement or discovery packets, are confined to a single VNET. By confining the multi-destination packets to a single VNET, unicast packets generated within the virtual LAN are then also naturally confined to that VNET.Other References
Field of SearchBridge or gateway between networksPATHFINDING OR ROUTING Combined circuit switching and packet switching Switching network having common elements to handle both circuit switched traffic and packet switched traffic Switching network having separate elements to handle circuit switched traffic and packet switched traffic Routing packets through a circuit switching network Routing circuit switched traffic through a packet switching network Employing logical addressing for routing (e.g., VP or VC) | |
