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    • 10. 发明授权
    • Reliable link layer packet retry
    • 可靠的链路层报文重试
    • US07876751B2
    • 2011-01-25
    • US12035067
    • 2008-02-21
    • Alan F. BennerDavid CraddockThomas A. Gregg
    • Alan F. BennerDavid CraddockThomas A. Gregg
    • H04L12/28H04L12/56
    • H04L1/188H04L49/90
    • Communication over a computer network with a node having a first port with a point-to-point link connection to a second node having a second port. The first port transmits to the second port a reliable link layer (RLL) packet over the link. The RLL packet comprises a first RLL header and a first data packet, the first RLL header preceding the first data packet, the first RLL header comprising an RLL start-of-frame (SOF) character and an RLL packet sequence number (PSN). If the first port receives an RLL acknowledgment control packet from the link, it acknowledges receipt of the first data packet, and the first port does not retain the first data packet in the buffer. If the first port does not receive the RLL acknowledgment packet from the link, acknowledging receipt of the first data packet, the first port re-transmits from the buffer the first data packet.
    • 通过计算机网络与具有具有到具有第二端口的第二节点的点对点链路连接的第一端口的节点进行通信。 第一端口通过链路向第二端口传送可靠的链路层(RLL)分组。 RLL分组包括第一RLL头部和第一数据分组,在第一数据分组之前的第一RLL头部,第一RLL头部包括RLL开始帧(SOF)字符和RLL分组序列号(PSN)。 如果第一端口从链路接收到RLL确认控制分组,则它确认接收到第一数据分组,并且第一端口不保留缓冲器中的第一数据分组。 如果第一端口没有从链路接收到RLL确认分组,则确认接收到第一数据分组,则第一端口从缓冲器重新发送第一数据分组。