Next , introduct the technology of the protocol analysis . it means when examin the data packet , wo can use the protocol analysis technology to distinguish the protocol type of the data , then use the corresponding data analysis procedure to examin the data packet . so the examination efficiency can improved . finally , the k - r algorithm used for system data analysis module is parallelized design . and through the comparision the original algorithm and parallel algorithm , we can find that under the 即在對(duì)截獲的數(shù)據(jù)包進(jìn)行檢測(cè)時(shí),先使用協(xié)議分析的技術(shù)辨別數(shù)據(jù)包的協(xié)議類型,再使用相應(yīng)的數(shù)據(jù)分析程序來檢測(cè)數(shù)據(jù)包,從而提高了系統(tǒng)的檢測(cè)效率; 5 )對(duì)系統(tǒng)數(shù)據(jù)分析模塊中使用的k - r模式匹配算法進(jìn)行了并行化設(shè)計(jì),并比較了原算法和并行算法的時(shí)間復(fù)雜度和執(zhí)行代價(jià)。