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1. 发明专利

AT466445T 未知
公开(公告)号：AT466445T
公开(公告)日：2010-05-15
申请号：AT04076306
申请日：2001-03-02
申请人： ADTRAN INC
发明人： FAN JASON C , BANNAI VINAY K , JOGALEKAR PRASAD P
IPC分类号： H04L12/56 , H04L29/12 , H04L12/24 , H04L12/46 , H04L29/06
摘要： A dual addressing mode is described in which reduced-length addresses (referred to as short addresses) are substituted for standard addresses (referred to as long addresses) for traffic whose source or destination is internal to a given virtual network topology. The required length of short addresses used for a given virtual topology is dependent on the number of devices reachable within the topology. For a virtual topology with less than 256 addressable devices, for example, 8-bit short addresses can be used. When a node within the virtual network sees a packet with a short destination address in the header, the node understands the address to be within the virtual network and routes the packet accordingly. If a source address is a short address, the virtual network can identify the source within the virtual network. For packets originating in the virtual network whose destination is also in the virtual network, both the source and destination addresses can be short addresses. Thus, devices within a virtual network topology are addressable in a dual manner on the data link layer and/or network layer by traffic flowing internal to, or private to, the virtual network. Also described is a technique for automatically assigning source addresses to devices within the virtual network.

2. 发明专利

DE60141987D1 未知
公开(公告)号：DE60141987D1
公开(公告)日：2010-06-10
申请号：DE60141987
申请日：2001-03-02
申请人： ADTRAN INC
发明人： FAN JASON C , BANNAI VINAY K , JOGALEKAR PRASAD P
IPC分类号： H04L12/56 , H04L29/12 , H04L12/24 , H04L12/46 , H04L29/06
摘要： A dual addressing mode is described in which reduced-length addresses (referred to as short addresses) are substituted for standard addresses (referred to as long addresses) for traffic whose source or destination is internal to a given virtual network topology. The required length of short addresses used for a given virtual topology is dependent on the number of devices reachable within the topology. For a virtual topology with less than 256 addressable devices, for example, 8-bit short addresses can be used. When a node within the virtual network sees a packet with a short destination address in the header, the node understands the address to be within the virtual network and routes the packet accordingly. If a source address is a short address, the virtual network can identify the source within the virtual network. For packets originating in the virtual network whose destination is also in the virtual network, both the source and destination addresses can be short addresses. Thus, devices within a virtual network topology are addressable in a dual manner on the data link layer and/or network layer by traffic flowing internal to, or private to, the virtual network. Also described is a technique for automatically assigning source addresses to devices within the virtual network.

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