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Computer networks are connected together t … Computer networks are connected together to form larger networks such as campus networks, corporate networks, or the Internet. Routers are network devices that may be used to connect these networks (e.g., a home network connected to the network of an Internet service provider). When a router interconnects many networks or handles much network traffic, it may become a bottleneck and cause network congestion (i.e., traffic loss). A number of techniques have been developed to prevent such problems. One of them is the network search engine (NSE), also known as network search element. This special-purpose device helps a router perform one of its core and repeated functions very fast: address lookup. Besides routing, NSE-based address lookup is also used to keep track of network service usage for billing purposes, or to look up patterns of information in the data passing through the network for security reasons . Network search engines are often available as ASIC chips to be interfaced with the network processor of the router. Content-addressable memory and Trie are two techniques commonly used when implementing NSEs.ques commonly used when implementing NSEs.
, 计算机网络连接在一起形成更大的网络，例如校园网、企业网或互联网。路由器是可用于连接这 … 计算机网络连接在一起形成更大的网络，例如校园网、企业网或互联网。路由器是可用于连接这些网络（例如，连接到互联网服务提供商网络的）的网络设备。当路由器互连多个网络或处理大量网络流量时，可能会成为瓶颈并导致网络拥塞（即流量丢失）。 多种技术可以防止此类问题。其中之一是网络搜索引擎（network search engine或network search element）。这种专用设备可帮助路由器非常快速地执行其核心和重复功能之一：地址查找。除了路由之外，基于 NSE 的地址查找还用于跟踪网络服务使用情况以进行计费，或出于安全原因查找通过网络的数据中的信息模式。 网络搜索引擎通常可用作与路由器的网络处理器的ASIC 芯片。内容可寻址内存和Trie是实现NSE时常用的两种技术。的网络处理器的ASIC 芯片。内容可寻址内存和Trie是实现NSE时常用的两种技术。
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Computer networks are connected together t … Computer networks are connected together to form larger networks such as campus networks, corporate networks, or the Internet. Routers are network devices that may be used to connect these networks (e.g., a home network connected to the network of an Internet service provider). When a router interconnects many networks or handles much network traffic, it may become a bottleneck and cause network congestion (i.e., traffic loss).e network congestion (i.e., traffic loss).
, 计算机网络连接在一起形成更大的网络，例如校园网、企业网或互联网。路由器是可用于连接这 … 计算机网络连接在一起形成更大的网络，例如校园网、企业网或互联网。路由器是可用于连接这些网络（例如，连接到互联网服务提供商网络的）的网络设备。当路由器互连多个网络或处理大量网络流量时，可能会成为瓶颈并导致网络拥塞（即流量丢失）。 多种技术可以防止此类问题。其中之一是网络搜索引擎（network search engine或network search element）。这种专用设备可帮助路由器非常快速地执行其核心和重复功能之一：地址查找。除了路由之外，基于 NSE 的地址查找还用于跟踪网络服务使用情况以进行计费，或出于安全原因查找通过网络的数据中的信息模式。 网络搜索引擎通常可用作与路由器的网络处理器的ASIC 芯片。内容可寻址内存和Trie是实现NSE时常用的两种技术。的网络处理器的ASIC 芯片。内容可寻址内存和Trie是实现NSE时常用的两种技术。
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Network search engine
, 网络搜索引擎 (网络硬件)
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