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2. 发明授权

US06401128B1 System and method for sending and receiving frames between a public device and a private device 失效
标题翻译：在公共设备和私有设备之间发送和接收帧的系统和方法
公开(公告)号：US06401128B1
公开(公告)日：2002-06-04
申请号：US09370095
申请日：1999-08-06
申请人： Jeffery Stai , Eric Griffith , Vincent W. Guan , David C. Banks , Ding Long Wu , Jieming Zhu
发明人： Jeffery Stai , Eric Griffith , Vincent W. Guan , David C. Banks , Ding Long Wu , Jieming Zhu
IPC分类号： G06F1300
CPC分类号： H04L61/2596 , H04L29/12009 , H04L29/12584 , H04L29/12886 , H04L61/6045
摘要： A system and method for sending frames between a public device and a private device comprise a phantom device mapping, an address translation, a frame payload translation, and a CRC regeneration. The system and method assign a phantom AL_PA for the public device and establishes a phantom device mapping between the phantom AL_PA and the public device's Port_ID. With the phantom device mapping, the present invention directs all communication between the public device and the private loop device as if the communication were between a phantom device and the private device. Specifically, the system and method comprise a public-to-private address translation in one direction and a private-to-public address translation in the other direction. During the public-to-private address translation process, the source address of the frame is converted to a phantom AL_PA. The public-to-private address translation uses a Port_ID to phantom AL_PA mapping table and finds an entry where the Port_ID matches the source address. The public-to-private address translation replaces the source address of the frame with the phantom AL_PA of the matched entry, and the destination address with the AL_PA only of the destination device. The private-to-public address translation replaces the destination address of the frame with the Port_ID of the matched entry, and the source address with the fabric assigned address of the private device.
摘要翻译：用于在公共设备和私有设备之间发送帧的系统和方法包括幻像设备映射，地址转换，帧有效载荷翻译和CRC再生。系统和方法为公共设备分配幻象AL_PA，并在幻象AL_PA和公共设备的Port_ID之间建立幻像设备映射。通过幻影设备映射，本发明引导公共设备和专用回路设备之间的所有通信，就像通信是在幻象设备和专用设备之间一样。具体来说，该系统和方法包括在一个方向上的公有地址转换和另一个方向的私有地址转换。在公共到私人地址转换过程中，帧的源地址被转换为幻影AL_PA。公共到私人地址转换使用Port_ID到幻像AL_PA映射表，并找到Port_ID与源地址匹配的条目。公私地址转换将帧的源地址替换为匹配条目的幻像AL_PA，目标地址仅与目标设备的AL_PA替换。私有到公共地址转换使用匹配条目的Port_ID替换帧的目的地址，并将源地址替换为专用设备的结构分配地址。

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