Packet Inspection and Service Classification

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1、PacketInspectionandServiceClassificationTECHNICALPRODUCTDESCRIPTION17/22102-AXB25010/4-V2UenBH5Copyright©EricssonAB2008–2013.Allrightsreserved.Nopartofthisdocumentmaybereproducedinanyformwithoutthewrittenpermissionofthecopyrightowner.DisclaimerThecontentsofthisdocumentaresubjecttorevision

2、withoutnoticeduetocontinuedprogressinmethodology,designandmanufacturing.Ericssonshallhavenoliabilityforanyerrorordamageofanykindresultingfromtheuseofthisdocument.TrademarkListAlltrademarksmentionedhereinarethepropertyoftheirrespectiveowners.TheseareshowninthedocumentTrademarkInformation.1

3、7/22102-AXB25010/4-V2UenBH5

4、2013-09-06ContentsContents1Introduction11.1Scope11.2TargetGroups12PISCOverview12.1PacketInspection22.2ServiceClassification42.2.1ServiceSet62.3Enforcement82.3.1ContentEnrichment82.3.2Redirection113HeaderPacketInspection113.1FragmentedIPandSegmentedTCPPackets123

5、.2Domain-BasedHeaderRules124DPI134.1GeneralProtocolInspectionInformation134.1.1StringMatching134.1.2EscapeCharacterConversion154.1.3ClassificationofSignalingPackets164.1.4ReassemblyofWTPFragments184.1.5FlowTime-outConfigurationperServiceSet194.1.6IPv6AddressNormalization194.2DNS204.3FTP20

6、4.3.1FTPPathTracking214.4HTTP224.4.1HTTPHeaderReassembly234.4.2HTTPRequestHeaderDeferredCharging244.4.3HTTPHeaderEnrichment254.4.4HTTPHeaderOverride294.4.5HTTPPipelining304.4.6HTTPParsingResilience314.4.7ApplicationIdentificationandReporting324.4.8URIHostNormalization324.4.9PortNormalizat

7、ion334.5IMAP344.5.1IMAPContentEnrichment344.6MMS3517/22102-AXB25010/4-V2UenBH5

8、2013-09-06PacketInspectionandServiceClassification4.7POP3364.8RTSP374.9SIP374.10SMTP394.10.1SMTPContentEnrichment404.11TFTP414.12WSP414.12.1WTPConcatenation424.13TCPDeferredCharging424.14WSPDeferredCharging445H

9、euristicPacketInspection455.1HeuristicPacketInspectionMethods465.1.1ProtocolPatternIdentification465.1.2MetricsIdentification475.2SupportedProtocols485.3MasqueradingDetection496SpecialCases506.1OMADownloads506.2JavaDownloads516.3HTTPS517Optimization51ReferenceList53