发明授权
- 专利标题： Methods and apparatus for defining flow types and instances thereof such as for identifying packets corresponding to instances of the flow types
- 专利标题（中）： 用于定义流类型和实例的方法和装置，例如用于识别与流类型的实例对应的分组
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申请号： US10355831申请日： 2003-01-31
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公开(公告)号： US07496035B1公开(公告)日： 2009-02-24
- 发明人: Ganesh Sadasivan , Rengabashyam Srinivas , William N. Eatherton , Xiaoxue Ma , Peram Marimuthu
- 申请人： Ganesh Sadasivan , Rengabashyam Srinivas , William N. Eatherton , Xiaoxue Ma , Peram Marimuthu
- 申请人地址： US CA San Jose
- 专利权人： Cisco Technology, Inc.
- 当前专利权人： Cisco Technology, Inc.
- 当前专利权人地址： US CA San Jose
- 代理机构： The Law Office of Kirk D. Williams
- 主分类号： G08C15/00
- IPC分类号： G08C15/00
摘要：
Methods and apparatus are disclosed for defining flow types and instances thereof such as for identifying packets corresponding to instances of the flow types. A flow type is defined and includes a set of properties including at least one of the possible properties selectable when defining a flow type. An instance of the flow type is defined and a set of corresponding associative memory entries is generated. A lookup word generator of a packet processing engine is typically notified of the use of the flow type, and one or more lookup words are generated typically by extracting fields from a received packet and/or from other sources. Based on a result of lookup operations on the set of associative memories entries using the generated one or more lookup words, the received packet can be identified as whether it matches or does not match the instance of the flow type.
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