发明名称 |
System and method for efficient matching of regular expression patterns across multiple packets |
摘要 |
A system and method for efficient matching regular expression patterns across multiple packets. A deep packet inspection system can be embodied in a switch ASIC using a flow tracker and a signature matching engine. The flow tracker can be positioned in an ingress portion of the switch ASIC at a location where packets in a bi-direction flow can be observed and recorded. The flow tracker generates a signature match request that is forwarded to a signature matching engine in an auxiliary pipeline. The signature matching engine is enabled to perform cross-packet signature matching using signature matching state machines and reports the signature matching results to the flow tracker using a response packet that is sent to the ingress pipeline. |
申请公布号 |
US8681794(B2) |
申请公布日期 |
2014.03.25 |
申请号 |
US201113330642 |
申请日期 |
2011.12.19 |
申请人 |
HILL NATE;WOLSKI STANISLAS;TARDO JOSEPH;BROADCOM CORPORATION |
发明人 |
HILL NATE;WOLSKI STANISLAS;TARDO JOSEPH |
分类号 |
H04L12/28 |
主分类号 |
H04L12/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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