公开(公告)号：US08155118B2

公开(公告)日：2012-04-10

申请号：US11208330

申请日：2005-08-19

申请人： Steven Glen Jorgensen ,  Jonathan Edward Greenlaw ,  Alan R. Albrecht

发明人： Steven Glen Jorgensen ,  Jonathan Edward Greenlaw ,  Alan R. Albrecht

IPC分类号： H04L12/56

CPC分类号： H04L41/142 ,  H04L43/022

摘要： One embodiment disclosed relates to a method of mirroring network traffic. A data packet is received by a network device, and an algorithm including randomization is applied to determine whether the data packet is selected to be mirrored. The packet is sent to a destination port, and if the data packet is selected to be mirrored, then the packet is also sent to a mirror port. Another embodiment of the invention relates to a networking device. The networking device includes at least a plurality of ports, a switching/routing engine, and a mirroring engine. The plurality of ports receive and transmit packets therefrom, and the switching/routing engine is coupled to the ports for transferring the packets therebetween. The mirroring engine is configured to apply an algorithm including randomization to select data packets for mirroring. Other embodiments are also disclosed.

摘要翻译： 公开的一个实施例涉及一种镜像网络流量的方法。 数据包由网络设备接收，并且应用包括随机化的算法来确定数据包是否被选择为镜像。 数据包被发送到目的端口，如果数据包被选择镜像，则还将数据包发送到镜像端口。 本发明的另一实施例涉及一种联网设备。 网络设备至少包括多个端口，交换/路由引擎和镜像引擎。 多个端口从其接收和发送分组，并且交换/路由引擎耦合到端口以在其间传送分组。 镜像引擎被配置为应用包括随机化的算法来选择用于镜像的数据分组。 还公开了其他实施例。

公开(公告)号：US08050185B2

公开(公告)日：2011-11-01

申请号：US11211198

申请日：2005-08-24

申请人： Steven Glen Jorgensen ,  Jonathan Edward Greenlaw

发明人： Steven Glen Jorgensen ,  Jonathan Edward Greenlaw

IPC分类号： H04J1/16

CPC分类号： H04L45/00 ,  H04L45/7453 ,  H04L49/208 ,  H04L49/555

摘要： One embodiment disclosed relates to a method of sampling network traffic. A data packet is received by a network device. Information is extracted from fields in the data packet, and a look-up word is created using the extracted information. A content addressable memory is searched for entries matching the look-up word. If a match is found, then a sampling circuit is queried, and a response is received therefrom. The data packet may be sent to a destination port. In addition, if the response from the sampling circuit indicates that the data packet is chosen to be mirrored, then the data packet may be also sent to a mirror port. Other embodiments are also disclosed.

摘要翻译： 公开的一个实施例涉及对网络业务进行采样的方法。 数据包由网络设备接收。 从数据包中的字段提取信息，并使用提取的信息创建查找字。 搜索内容可寻址存储器，查找与查找字匹配的条目。 如果找到匹配，则查询采样电路，并从中接收响应。 可以将数据分组发送到目的端口。 另外，如果来自采样电路的响应指示数据分组被选择为镜像，则数据分组也可以被发送到镜像端口。 还公开了其他实施例。