公开(公告)号：US06425062B1

公开(公告)日：2002-07-23

申请号：US09395870

申请日：1999-09-14

申请人： Terry L. Kendall ,  Kenneth G. McKee ,  Kishore Rao

发明人： Terry L. Kendall ,  Kenneth G. McKee ,  Kishore Rao

IPC分类号： G06F1200

CPC分类号： G11C7/1063 ,  G11C7/1012 ,  G11C7/1018 ,  G11C7/103 ,  G11C7/1039 ,  G11C7/1072 ,  G11C16/08 ,  G11C16/26

摘要： A system and apparatus for controlling a burst sequence in a synchronous memory is described. In one embodiment, the system comprises a synchronous memory and a burst read device coupled to the synchronous memory. In one embodiment, the burst read device is configured to sense a page of data as a current page from the synchronous memory, wherein the current page contains a fixed number of words of data. The device is further configured to latch the current page of data, and synchronously read the current page of data, one word at a time. In an alternate embodiment, the burst read device further comprises a wrap-bit. If the wrap-bit is not set, the burst read device is configured to latch the current page of data, adjust a word pointer to indicate a next word of data, and repeat latching and adjusting in a sequential burst read order. If the wrap-bit is set, the burst read device is configured to latch the current page of data, adjust a word pointer to indicate a next word of data, and repeat latching and adjusting in a non-sequential burst read order.

摘要翻译： 描述用于控制同步存储器中的突发序列的系统和装置。 在一个实施例中，系统包括耦合到同步存储器的同步存储器和脉冲串读取设备。 在一个实施例中，突发读取设备被配置为感测来自同步存储器的当前页面的数据页面，其中当前页面包含固定数量的数据字。 该设备还被配置为锁存当前数据页，并同时一个字地同步读取当前数据页。 在替代实施例中，突发读取设备还包括换向位。 如果未设置环绕位，则突发读取设备被配置为锁存当前数据页面，调整字指针以指示下一个数据字，并且以顺序突发读取顺序重复锁存和调整。 如果设置了封装位置，突发读取设备被配置为锁存当前数据页面，调整字指针以指示下一个数据字，并以非连续的突发读取顺序重复锁存和调整。

公开(公告)号：US20050041590A1

公开(公告)日：2005-02-24

申请号：US10746056

申请日：2003-12-24

申请人： Joseph Olakangil ,  Sahil Dighe ,  Kishore Rao

发明人： Joseph Olakangil ,  Sahil Dighe ,  Kishore Rao

IPC分类号： H04L12/56 ,  H04L12/26

CPC分类号： H04L45/00

摘要： A method and system for augmenting routing decisions in a network switching device with topology information acquired using source learning are disclosed. In the preferred embodiment, the method of selecting a port to transmit an outbound flow from a first node to a second node comprises the steps of identifying a plurality of ports associated with minimal equal-cost paths from the first node to the second node, and if an inbound flow from the second node is detected on a first port of the plurality of ports of the first node, then transmitting the outbound flow from the first port. In the absence of an inbound flow from the second node, the first node generally selects the port for the outbound flow from the plurality of minimal equal-cost paths. The present invention allows a switching device to take advantage of the path determination made at another router in the network while avoiding inconsistencies between conventional route selection operations and IP source learning in switching devices adapted to perform bridging on IP address.

摘要翻译： 公开了一种在使用源学习获取的拓扑信息的网络交换设备中增加路由决策的方法和系统。 在优选实施例中，选择从第一节点向第二节点发送出站流的端口的方法包括以下步骤：识别与从第一节点到第二节点的最小等价路径相关联的多个端口，以及 如果在第一节点的多个端口的第一端口上检测到来自第二节点的入站流，则从第一端口发送出站流。 在没有来自第二节点的入站流的情况下，第一节点通常从多个最小等价路径中选择出站流的端口。 本发明允许交换设备利用在网络中的另一个路由器处进行的路径确定，同时避免了常规路由选择操作和适于在IP地址上进行桥接的交换设备中的IP源学习之间的不一致。