专利名称：Methods And Systems To Embed Valid-Field
(VF) Bits In Classification Keys For Network
Packet Frames
valid from是什么意思
发明人：Ron Treves,Evgeni Ginzburg,Adi Katz
申请号：US14694091
申请日：20150423
公开号：US20160316044A1
公开日：
20161027
专利内容由知识产权出版社提供
专利附图：
摘要：Methods and systems are disclosed to embed valid-field (VF) bits into
classification keys for network packet frames. The embedded VF bits allow for extracted
data from existing fields associated with frame data to be distinguished from default data used for missing fields where this extracted data and default data has been included within a frame classification key generated for a network packet frame. In certain embodiments, a valid-field field extraction command (VF-FEC) causes a key generator to embed VF bits into a frame classification key, and the logic state of the VF bits are used to distinguish extracted data from default data. Further, the disclosed embodiments allow VF bits to be selectively cleared based upon a bit mask applied prior to embedding of the VF bits. Still further, users can define VF-FECs and other field extraction commands (FECs) for key generation through one or more programmable key composition rules.
申请人：Freescale Semiconductor, Inc.
地址：Austin TX US
国籍：US
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