公开(公告)号：US20100054251A1

公开(公告)日：2010-03-04

申请号：US12423216

申请日：2009-04-14

申请人： Won Kyoung LEE ,  Jaewoo PARK ,  Bheom Soon JOO

发明人： Won Kyoung LEE ,  Jaewoo PARK ,  Bheom Soon JOO

IPC分类号： H04L12/56

CPC分类号： H04L49/3009 ,  H04L12/4641 ,  H04L12/4645 ,  H04L49/351 ,  H04L49/354

摘要： Provided is a method of processing a packet for improving performance of an Ethernet switch. According to the present invention, a routine of searching a virtual local area network (VLAN) table by a decapsulation microblock and a bridge microblock may be performed by a core component when a core component generates tables and thus the number of memory accesses may be reduced. Also, VLAN port state information of an input port and VLAN port tagging information of an output port may be stored in metadata and may be transmitted to a next microblock. Accordingly, a duplicate memory access routine of the bridge microblock and an encapsulation microblock may be removed and thus an access time delay may be reduced, thereby improving performance of an Ethernet switch.

摘要翻译： 提供了一种处理分组以提高以太网交换机的性能的方法。 根据本发明，当核心部件产生表格时，可以由核心部件执行解封装微块和桥微块搜索虚拟局域网（VLAN）表的例程，从而可以减少存储器访问次数 。 此外，输入端口的VLAN端口状态信息和输出端口的VLAN端口标记信息可以存储在元数据中，并且可以被发送到下一个微块。 因此，可以去除桥接微块和封装微块的重复存储器访问例程，从而可以减少访问时间延迟，从而提高以太网交换机的性能。

公开(公告)号：US20080114893A1

公开(公告)日：2008-05-15

申请号：US11923944

申请日：2007-10-25

申请人： Ji Wook YOUN ,  Bheom Soon JOO ,  Jung Sik KIM

发明人： Ji Wook YOUN ,  Bheom Soon JOO ,  Jung Sik KIM

IPC分类号： G06F15/16

CPC分类号： H04L12/66

摘要： An apparatus and method for guaranteeing a service specific bandwidth in an Ethernet frame transmission system. In the method, memory status information of an input frame buffer and usable bandwidth information of a present Ethernet network are obtained if congestions or errors occur in the Ethernet frame transmission system. Then, different pause times by service specific priorities are set based on the memory status information and the usable bandwidth information. A MAC control frame including the pause frame is provided to the corresponding adjacent nodes. A media access control processor, if the received Ethernet frame is the MAC control frame, detects the pause times by priorities in the detected pause frame. A single processor generates drop information by priorities. A network processor drops a corresponding Ethernet frame according to the drop information by priorities, which is generated from the signal processor.

摘要翻译： 一种用于在以太网帧传输系统中保证业务特定带宽的装置和方法。 在该方法中，如果以太网帧传输系统发生拥塞或错误，则获得输入帧缓冲器的存储器状态信息和当前以太网的可用带宽信息。 然后，基于存储器状态信息和可用带宽信息来设定根据服务特定优先级的不同暂停时间。 包括暂停帧的MAC控制帧被提供给相应的相邻节点。 如果所接收的以太网帧是MAC控制帧，则媒体接入控制处理器根据检测到的暂停帧中的优先级来检测暂停时间。 单个处理器通过优先级生成丢弃信息。 网络处理器根据从信号处理器产生的优先级根据丢弃信息丢弃对应的以太网帧。