公开(公告)号：US08077714B2

公开(公告)日：2011-12-13

申请号：US12034830

申请日：2008-02-21

申请人： Con Cremin ,  Maurice Gleeson ,  Jennifer Hamilton ,  Niall Hanrahan ,  Micheal Lardner ,  Sorcha Callaghan ,  Anne G O'Connell ,  Eugene G O'Neill

发明人： Con Cremin ,  Maurice Gleeson ,  Jennifer Hamilton ,  Niall Hanrahan ,  Micheal Lardner ,  Sorcha Callaghan ,  Anne G O'Connell ,  Eugene G O'Neill

IPC分类号： H04L12/28

CPC分类号： H04L47/50

摘要： Multicast packets that are received on a port of a network device and forwarded to multiple output ports are stored in memory and respective primary control entries which define them are converted to secondary control entries defining multiple unicast packets before a scheduling algorithm is applied. The packets are reconstituted after the application of the scheduling algorithm has been applied to the control entries. For VPLS packets that are received on a single port and replicated multiple times on one or more output ports, a replication database may be used in conjunction with a replication engine to convert the control entry for a received packet into multiple control entries defining unicast packets for each of the destination ports before the scheduling algorithm is applied. This method is applicable to the replication of packets onto a Virtual Private LAN.

摘要翻译： 在网络设备的端口上接收并转发到多个输出端口的组播数据包被存储在存储器中，并且在应用调度算法之前，将定义它们的各个主控制条目转换为定义多个单播数据包的辅助控制条目。 在将调度算法应用于控制条目之后，分组被重构。 对于在单个端口上接收并在一个或多个输出端口上多次复制的VPLS数据包，复制数据库可与复制引擎结合使用，以将接收到的数据包的控制条目转换为定义单播数据包的多个控制条目 应用调度算法之前的每个目的端口。 该方法适用于将数据包复制到虚拟专用LAN上。