IEC 62351-7-2017 Power systems management and associated information exchange - Data and communications security - Part 7 Network and System Management (NSM) da.pdf

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1、 IEC 62351-7 Edition 1.0 2017-07 INTERNATIONAL STANDARD Power systems management and associated information exchange Data and communications security Part 7: Network and System Management (NSM) data object models IEC 62351-7:2017-07(en) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright

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10、77, 86 and CISPR. IEC Customer Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. IEC 62351-7 Edition 1.0 2017-07 INTERNATIONAL STANDARD Power systems management and associat

11、ed information exchange Data and communications security Part 7: Network and System Management (NSM) data object models INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 33.200 ISBN 978-2-8322-4442-5 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtain

12、ed this publication from an authorized distributor. colour inside 2 IEC 62351-7:2017 IEC 2017 CONTENTS FOREWORD . 8 1 Scope 10 2 Normative references 10 3 Terms and definitions 12 4 Abbreviated terms and acronyms . 13 5 Overview of Network and System Management (NSM) 14 5.1 Objectives . 14 5.2 NSM c

13、oncepts. 15 5.2.1 Simple Network Management Protocol (SNMP) . 15 5.2.2 ISO NSM categories 15 5.2.3 NSM “data objects” for power system operations . 16 5.2.4 Other NSM protocols . 16 5.3 Communication network management . 16 5.3.1 Network configuration 16 5.3.2 Network backup . 17 5.3.3 Communication

14、s failures and degradation . 17 5.4 Communication protocols 18 5.5 End systems management 18 5.6 Intrusion detection systems (IDS) . 19 5.6.1 IDS guidelines . 19 5.6.2 IDS: Passive observation techniques . 20 5.6.3 IDS: Active security monitoring architecture with NSM data objects . 20 5.7 End-to-en

15、d security . 21 5.7.1 End-to-end security concepts. 21 5.7.2 Role of NSM in end-to-end security . 22 5.8 NSM requirements: detection functions . 24 5.8.1 Detecting unauthorized access 24 5.8.2 Detecting resource exhaustion as a denial of service (DoS) attack 24 5.8.3 Detecting invalid buffer access

16、DoS attacks 25 5.8.4 Detecting tampered/malformed PDUs 25 5.8.5 Detecting physical access disruption . 25 5.8.6 Detecting invalid network access . 25 5.8.7 Detecting coordinated attacks 26 5.9 Abstract object and agent UML descriptions 26 5.9.1 Purpose of UML . 26 5.9.2 Abstract types and base types

17、 . 27 5.9.3 Enumerated Types. 28 5.9.4 Abstract agents . 28 5.9.5 Unsolicited Event Notification 31 5.9.6 UML Model extension 31 5.10 Abstract Object UML translation to SNMP . 31 5.10.1 Simple Network Management Protocol (SNMP) . 31 5.10.2 Management information bases (MIBs) 32 5.11 SNMP mapping of

18、UML model Objects 33 5.12 SNMP Security 34 6 Abstract objects . 36 IEC 62351-7:2017 IEC 2017 3 6.1 General . 36 6.2 Package Abstract Types . 37 6.2.1 General . 37 6.2.2 BooleanValue 37 6.2.3 BooleanValueTs 37 6.2.4 CounterTs 37 6.2.5 CntRs 38 6.2.6 Floating . 38 6.2.7 FloatingTs . 38 6.2.8 EntityInd

19、ex 39 6.2.9 Integer . 39 6.2.10 IntegerTs . 39 6.2.11 InetAddress . 40 6.2.12 InetAddressType . 40 6.2.13 MacAddress . 40 6.2.14 Selector . 40 6.2.15 Timestamp . 41 6.2.16 CharString . 41 6.2.17 CharStringTs . 41 6.2.18 AbstractBaseType root class . 41 6.2.19 AbstractAgent root class 42 6.3 Package

20、EnumeratedTypes 42 6.3.1 General . 42 6.3.2 AppDatStKind enumeration 42 6.3.3 PhyHealthKind enumeration. 42 6.3.4 ExtKind enumeration . 42 6.3.5 IntKind enumeration. 43 6.3.6 LnkKind enumeration . 43 6.3.7 PSPAccKind enumeration 43 6.3.8 ProtIdKind enumeration . 43 6.3.9 EventKind enumeration 44 6.3

21、.10 TimSyncIssueKind enumeration . 44 6.3.11 SecurityProfileKind enumeration 45 6.3.12 TimSyncSrcKind enumeration 45 6.3.13 AppDatStType . 45 6.3.14 PhyHealthType 46 6.3.15 ExtType . 46 6.3.16 IntType 46 6.3.17 EventType . 46 6.3.18 PSPAccType . 47 6.3.19 ProtIdType . 47 6.3.20 TimSyncIssueType 47 6

22、.3.21 SecurityProfileType . 47 6.3.22 TimSyncSrcType . 48 6.3.23 LnkType 48 7 Agents . 48 7.1 Package Overview 48 7.2 Package Environmental Agent 50 7.2.1 General . 50 4 IEC 62351-7:2017 IEC 2017 7.2.2 Environmental . 51 7.2.3 PSUPEntry 51 7.2.4 Notification 52 7.2.5 SecurityNotification 52 7.3 Pack

23、age IED Agent . 53 7.3.1 General . 53 7.3.2 IED 54 7.3.3 CPUEntry 55 7.3.4 EXTEntry . 56 7.3.5 STOREEntry 56 7.3.6 Notification 57 7.3.7 SecurityNotification 57 7.4 Package Application Protocols Agents 57 7.4.1 General . 57 7.4.2 Package Common objects . 58 7.4.3 Package IEEE 1815 and IEC 60870-5 Ag

24、ent 59 7.4.4 Package IEC61850 Agent 68 7.5 Package Interfaces Agent . 87 7.5.1 General . 87 7.5.2 Interface 88 7.5.3 Interfaces 88 7.5.4 ETHEntry . 90 7.5.5 KEYEntry . 90 7.5.6 SEREntry. 91 7.5.7 ALGEntry . 91 7.5.8 USBEntry. 92 7.5.9 Notification 92 7.6 Package Clocks Agent 93 7.6.1 General . 93 7.

25、6.2 Clock . 93 7.6.3 ClockEntry . 94 7.6.4 SecurityNotification 95 7.7 Network and Transport Agents 95 7.7.1 TCP . 95 7.7.2 User Datagram Protocol (UDP) 95 7.7.3 IP 95 8 SNMP security . 96 9 Secured time synchronization 96 Annex A (normative) SNMP MIB Mapping 97 Annex B (informative) Mapping of rele

26、vant IEC 61850 Objects . 229 Bibliography 230 Figure 1 Example of a power system SCADA architecture extended with NSM Data Objects . 15 Figure 2 IDS Information exchange between applications: generic communication topology 19 Figure 3 Active security monitoring architecture with NSM data objects 21

27、Figure 4 Comparison of NSM data objects with IEC 61850 objects . 23 IEC 62351-7:2017 IEC 2017 5 Figure 5 Management of both the power system infrastructure and the information infrastructure 23 Figure 6 Abstract types 27 Figure 7 Enumerated types 28 Figure 8 Subagents 29 Figure 9 Environmental agent

28、 30 Figure 10 Model stereotypes 30 Figure 11 Object identifier structure . 32 Figure 12 SNMP table 34 Figure 13 SNMP RFCs map and security . 35 Figure 14 SNMP Entity . 36 Figure 15 Class diagram Overview:Part7 Classes Overview 49 Figure 16 Class diagram Environmental Agent:Environmental . 50 Figure

29、17 Class diagram IED Agent:IED . 53 Figure 18 Class diagram Common objects:Application Protocol common objects . 58 Figure 19 Class diagram IEEE 1815 and IEC 60870-5 Agent:IEEE 1815 and IEC 60870 Agent Relationships . 60 Figure 20 Class diagram ACSI:ACSI . 69 Figure 21 Class diagram MMS:MMS . 71 Fig

30、ure 22 Class diagram SV and GSE common objects:SV and GSE common objects 76 Figure 23 Class diagram SV:SV 78 Figure 24 Class diagram GSE:GSE . 82 Figure 25 Class diagram Interfaces Agent:Interfaces 87 Figure 26 Class diagram Clocks Agent:Clocks Agent 93 Table 1 Attributes of Abstract Types:BooleanVa

31、lue . 37 Table 2 Attributes of Abstract Types:BooleanValueTs . 37 Table 3 Attributes of Abstract Types:CounterTs 38 Table 4 Attributes of Abstract Types:CntRs . 38 Table 5 Attributes of Abstract Types:Floating 38 Table 6 Attributes of Abstract Types:FloatingTs 39 Table 7 Attributes of Abstract Types

32、:EntityIndex . 39 Table 8 Attributes of Abstract Types:Integer . 39 Table 9 Attributes of Abstract Types:IntegerTs 39 Table 10 Attributes of Abstract Types:InetAddress 40 Table 11 Attributes of Abstract Types:InetAddressType 40 Table 12 Attributes of Abstract Types:MacAddress . 40 Table 13 Attribute

33、s of Abstract Types:Selector 41 Table 14 Attributes of Abstract Types:Timestamp . 41 Table 15 Attributes of Abstract Types:CharString 41 Table 16 Attributes of Abstract Types:CharStringTs 41 Table 17 Literals of EnumeratedTypes:AppDatStKind . 42 Table 18 Literals of EnumeratedTypes:PhyHealthKind 42

34、6 IEC 62351-7:2017 IEC 2017 Table 19 Literals of EnumeratedTypes:ExtKind . 43 Table 20 Literals of EnumeratedTypes:IntKind 43 Table 21 Literals of EnumeratedTypes:LnkKind 43 Table 22 Literals of EnumeratedTypes:PSPAccKind . 43 Table 23 Literals of EnumeratedTypes:ProtIdKind . 44 Table 24 Literals of

35、 EnumeratedTypes:EventKind . 44 Table 25 Literals of EnumeratedTypes:TimSyncIssueKind 44 Table 26 Literals of EnumeratedTypes:SecurityProfileKind . 45 Table 27 Literals of EnumeratedTypes:TimSyncSrcKind . 45 Table 28 Attributes of EnumeratedTypes:AppDatStType . 46 Table 29 Attributes of EnumeratedTy

36、pes:PhyHealthType 46 Table 30 Attributes of EnumeratedTypes:ExtType . 46 Table 31 Attributes of EnumeratedTypes:IntType 46 Table 32 Attributes of EnumeratedTypes:EventType . 47 Table 33 Attributes of EnumeratedTypes:PSPAccType . 47 Table 34 Attributes of EnumeratedTypes:ProtIdType 47 Table 35 Attrib

37、utes of EnumeratedTypes:TimSyncIssueType 47 Table 36 Attributes of EnumeratedTypes:SecurityProfileType . 48 Table 37 Attributes of EnumeratedTypes:TimSyncSrcType . 48 Table 38 Attributes of EnumeratedTypes:LnkType 48 Table 39 Attributes of Environmental Agent:Environmental . 51 Table 40 Attributes o

38、f Environmental Agent:PSUPEntry 51 Table 41 Attributes of Environmental Agent:Notification 52 Table 42 Attributes of Environmental Agent:SecurityNotification . 52 Table 43 Attributes of IED Agent:IED 54 Table 44 Attributes of IED Agent:CPUEntry. 55 Table 45 Attributes of IED Agent:EXTEntry . 56 Tabl

39、e 46 Attributes of IED Agent:STOREEntry 56 Table 47 Attributes of IED Agent:Notification 57 Table 48 Attributes of IED Agent:SecurityNotification 57 Table 49 Attributes of Common objects:CommonProtocolInfo . 58 Table 50 Attributes of IEEE 1815 and IEC 60870-5 Agent:60870andDNPProtocolInfo . 61 Table

40、 51 Attributes of IEEE 1815 and IEC 60870-5 Agent:Association 62 Table 52 Attributes of IEEE 1815 and IEC 60870-5 Agent:Summary . 64 Table 53 Attributes of IEEE 1815 and IEC 60870-5 Agent:60870andDNPSecurityNotification . 65 Table 54 Attributes of IEEE 1815 and IEC 60870-5 Agent:60870andDNPNotificat

41、ion . 65 Table 55 Attributes of IEEE 1815 and IEC 60870-5 Agent:MasterAssociation 66 Table 56 Attributes of IEEE 1815 and IEC 60870-5 Agent:OutstationAssociation . 67 Table 57 Attributes of ACSI:ACSISummary . 70 Table 58 Attributes of MMS:MMSProtocolInfo . 72 Table 59 Attributes of MMS:MMSProvider .

42、 73 Table 60 Attributes of MMS:MMSAssociation 74 IEC 62351-7:2017 IEC 2017 7 Table 61 Attributes of MMS:MMSSecurityNotification 75 Table 62 Attributes of MMS:MMSNotification 75 Table 63 Attributes of SV and GSE common objects:GSEandSVCommon 76 Table 64 Attributes of SV and GSE common objects:GSEandS

43、VPublisherAssociation 77 Table 65 Attributes of SV and GSE common objects:GSEandSVSubscriberAssociation 77 Table 66 Attributes of SV:SVProvider 79 Table 67 Attributes of SV:SVPublisherAssociationIP . 79 Table 68 Attributes of SV:SVPublisherAssociationL2 80 Table 69 Attributes of SV:SVSubcriberAssoci

44、ationIP. 80 Table 70 Attributes of SV:SVSubcriberAssociationL2 81 Table 71 Attributes of SV:SVNotification . 81 Table 72 Attributes of GSE:GSESubscriberAssociation . 83 Table 73 Attributes of GSE:GSEProvider 83 Table 74 Attributes of GSE:GSEPublisherAssociationIP 84 Table 75 Attributes of GSE:GSEPub

45、lisherAssociationL2 . 84 Table 76 Attributes of GSE:GSESubcriberAssociationIP . 85 Table 77 Attributes of GSE:GSESubscriberAssociationL2 . 85 Table 78 Attributes of GSE:GSENotification 86 Table 79 Attributes of Interfaces Agent:Interface. 88 Table 80 Attributes of Interfaces Agent:Interfaces . 89 Ta

46、ble 81 Attributes of Interfaces Agent:ETHEntry . 90 Table 82 Attributes of Interfaces Agent:KEYEntry . 90 Table 83 Attributes of Interfaces Agent:SEREntry . 91 Table 84 Attributes of Interfaces Agent:ALGEntry . 91 Table 85 Attributes of Interfaces Agent:USBEntry . 92 Table 86 Attributes of Interface

47、s Agent:Notification . 92 Table 87 Attributes of Clocks Agent:Clock 93 Table 88 Attributes of Clocks Agent:ClockEntry 94 Table 89 Attributes of Clocks Agent:SecurityNotification . 95 Table B.1 IEC 61850-7-4 objects mapping . 229 8 IEC 62351-7:2017 IEC 2017 INTERNATIONAL ELECTROTECHNICAL COMMISSION _

48、 POWER SYSTEMS MANAGEMENT AND ASSOCIATED INFORMATION EXCHANGE DATA AND COMMUNICATIONS SECURITY Part 7: Network and System Management (NSM) data object models FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fie