In-line packet reassembly within a mobile gateway
    1.
    发明授权
    In-line packet reassembly within a mobile gateway 有权
    在移动网关内进行在线分组重组

    公开(公告)号:US08644339B1

    公开(公告)日:2014-02-04

    申请号:US13426299

    申请日:2012-03-21

    IPC分类号: H04J3/24

    摘要: In one example, a serving gateway device includes one or more network interfaces configured to receive a packet fragment from a packet data network gateway (PGW) device, and a control unit configured to hash a source Internet protocol (IP) address, a destination IP address, and a fragment identifier value for the packet fragment to determine an entry of a hash table, wherein the entry of the hash table includes data defining a next expected offset, a next expected fragment identifier, and a reference to a fragment table comprising data for at least one previous packet fragment corresponding to the packet fragment, to compare a length of the packet fragment to the next expected offset and the fragment identifier value for the packet fragment to the next expected fragment identifier, and store the packet fragment using the fragment table based on the comparison.

    摘要翻译: 在一个示例中,服务网关设备包括被配置为从分组数据网络网关(PGW)设备接收分组片段的一个或多个网络接口,以及被配置为将源Internet协议(IP)地址,目的地IP 地址和分组片段的片段标识符值,以确定散列表的条目,其中散列表的条目包括定义下一个预期偏移量的数据,下一个预期片段标识符以及对包括数据的片段表的引用 对于与分组片段相对应的至少一个先前的分组片段,将分组片段的长度与下一个预期偏移量相对应,并将分组片段的片段标识符值与下一个预期片段标识符进行比较,并使用片段来存储分组片段 表根据比较。