1、INTERNATIONAL STANDARD ISO/IEC 10742 First edition 1994-08-0 1 AMENDMENT 1 1995-11-15 Information technology - Telecommunications and information exchange between Systems - Elements of management information related to OSI Data Link Layer Standards AMENDMENT 1: Addition of DCE conditions and new att
2、ri butes Technologies de Unformation - T6kcommunications et khange dinformation entre syst; ATTRIBUTES receivedMIpResets REPLACE-WITH-DEFAULT GET-REPLACE, timesMT1 Expired REPLACE-WITH-DEFAULT GET-REPLACE, iFramesReassignments REPLACE-WITH-DEFAULT GET-REPLACE, receivedMlpFramesInGuardRegion REPLACE-
3、WITH-DEFAULT GET-REPLACE, REGISTERED AS (DLM.poi mLP-Counters-P(6);” Add the following definitions of the new ATTRIBUTES in Attributes: “iFramesReassignments ATTRIBUTE DERIVED FROM “GMI”:nonWrapping64BitCounter; BEHAVIOUR iFramesReassignments-B BEHAVIOUR DEFINED AS Counter. Number of reassignments o
4、f IFrames on another slp.; REGISTERED AS (DLM.aoi iFramesReassignments(46); mW ATTRIBUTE WITH ATTRIBUTE SYNTAX DLM.MW; 1 ISO/IEC 10742:1994/Amd.l:1995(E) 0 ISO/IEC MATCHES FOR EQUALITY, ORDERING; BEHAVIOUR mW-B BEHAVIOUR DEFINED AS MLP window size.; REGISTERED AS (DLM.aoi mW(47); mX ATTRIBUTE WITH A
5、TTRIBUTE SYNTAX DLM.MX; MATCHES FOR EQUALITY, ORDERING; BEHAVIOUR mX-B BEHAVIOUR DEFINED AS Receive MLP window in the Guard Region.; REGISTERED AS (DLM.aoi mX(48); receivedMlpFrameslnGuardRegion ATTRIBUTE DERIVED FROM “GMIYnonWrapping64BitCounter; BEHAVIOUR receivedMlpFrameslnGuardRegion-B BEHAVIOUR
6、 DEFINED AS Counter. Number of MLP Frames received in the Guard Region.; REGISTERED AS (DLM.aoi receivedMlpFrameslnGuardRegion(49); receivedMlpResets ATTRIBUTE DERIVED FROM “GMlYnonWrapping64BitCounter; BEHAVIOUR receivedMIpResets-B BEHAVIOUR DEFINED AS Counter. Number of received MLP Resets.; REGIS
7、TERED AS (DLM.aoi receivedMIpResets(S0); timesMT1 Expired ATTRIBUTE DERIVED FROM “GMl”:nonWrapping64BitCounter; BEHAVIOUR timesMT1 Expired-B BEHAVIOUR DEFINED AS Counter. Lost multilink frames.; REGISTERED AS (DLM.aoi timesMT1 Expired(51);” 5.8 The LAPB Single Link Protocol Connection managed Object
8、 Complete the condition for the CONDITIONAL PACKAGE t3-P with: “or ITU-T DCE mode Operation is supported” Add a new CONDITIONAL PACKAGE to sLPConnection MO CLASS: “t4-P PRESENT IF Timer T4 of ISO/IEC 7776 or ITU-T DCE mode is supported” Add a new CONDITIONAL PACKAGE to sLPConnection MO CLASS: “Iink-
9、reset-disconnect-n2-P PRESENT IF supported” emove in commonSLPConnection-P PACKAGE: “ATTRIBUTE : t4Timer” and “ATTRIBUTE GROUP: t4Timer” Add in Packages the following definitions: “Iink-reset-disconnect-n2-P PACKAGE BEHAVIOUR link-reset-disconnect-n2-P-B BEHAVIOUR DEFINED AS Present if supported.; A
10、TTRIBUTES abnormalLinkDisconnectsReceived GET, abnormalLinkDisconnectsSent GET, 2 0 ISO/IEC ISOAEC 10742:1994/Amd.l:1995(E) IinkResetsReceived GET, IinkResetsSent GET, timesN2Reached GET; ATTRIBUTE GROUPS “GMI”:cou nters abnormalLinkDisconnectsReceived abnormalLinkDisconnectsSent IinkResetsReceived
11、IinkResetsSent timesN2Reached; REGISTERED AS (DLM.poi link-reset-disconnect-n2-P(4); t4-P PACKAGE BEHAVIOUR t4-P-B BEHAVIOUR DEFINED AS Present if the Timer T4 is supported.; ATTRIBUTES t4Timer REPLACE-WITH-DEFAULT GET REPLACE, times T4Expired GET; ATTRIBUTES GROUPS “GMI”:cou nters timesT4Expired, t
12、imers t4Timer; REGISTERED AS (DLM.poi t4-P(7);” Add the following definitions in Attributes: “abnormalLinkDisconnectsReceived ATTRIBUTE DERIVED FROM “GMI”:nonWrapping64BitCounter; BEHAVIOUR abnormalLinkDisconnectsReceived-B BEHAVIOUR DEFINED AS Counter. Total number of received abnormal Link Disconn
13、ects.; REGISTERED AS (DLM.aoi abnormalLinkDisconnectsReceived(41); abnormalLinkDisconnectsSent ATTRIBUTE DERIVED FROM “GMI”:nonWrapping64BitCounter; BEHAVIOUR abnormalLinkDisconnectsSent-B BEHAVIOUR DEFINED AS Counter. Total number of sent abnormal Link Disconnects.; REGISTERED AS (DLM.aoi abnormalL
14、inkDisconnectsSent(42); IinkResetsReceived ATTRIBUTE DERIVED FROM “GMI”:nonWrapping64BitCounter; BEHAVIOUR IinkResetsReceived-B BEHAVIOUR DEFINED AS Counter. Total number of received Link Resets.; REGISTERED AS (DLM.aoi linkResetsReceived(43); IinkResetsSent ATTRIBUTE DERIVED FROM “GMl”:nonWrapping6
15、4BitCounter; BEHAVIOUR IinkResetsSent-B BEHAVIOUR DEFINED AS Counter. Total number of sent Link Resets.; REGISTERED AS (DLM.aoi IinkResetsSent(44); timesN2Reached ATTRIBUTE DERIVED FROM “GMI”:nonWrapping64BitCounter; BEHAVIOUR timesN2Reached-B BEHAVIOUR DEFINED AS Counter. Total number of times N2 w
16、as Reached.; REGISTERED AS DLM.aoi timesN2Reached(45);” ISO/IEC 10742:1994/Amd.l:1995(E) 0 ISOAEC Add in the definition of Attribute t3Timer ATTlBUTE for DEFINED AS: “or ITU-T X25 mandatory Parameter” Add in the definition of Attribute t4Timer ATTRIBUTE for DEFINED AS: “or a DCE” 5.9 The LAPB Single
17、 Link Protocol Connection Initial Values managed Object Complete the condition for the CONDITIONAL PACKAGE t3IVMO-P with: “or ITU-T DCE mode Operation is supported” Add a new CONDITIONAL PACKAGE to sLPConnection WM0 CLASS: “t4lVMO-P PRESENT IF Timer T4 of ISOAEC 7776 or ITU-T DCE mode is supported”
18、Add the foliowing definition in Packages: “t4lVMO-P PACKAGE BEHAVIOUR t4IVMO-P-B BEHAVIOUR DEFINED AS Present if the Timer T4 is supported.; ATTRIBUTES t4Timer REPLACE-WITH-DEFAULT GET REPLACE, times T4Expired GET; A-I-TRIBUTES GROUPS “GMI”:counters timesT4Expired, timers t4Timer; REGISTERED AS (DLM
19、.poi t4lVMO-P(8);” 6 ASN.l module Add to other definitions “MW 1:s SEQUENCE( mWSend 0 IMPLICIT INTEGER (1.4095), mWReceive 1 IMPLICIT INTEGER (1.4095) MX := SEQUENCE( mXSend 0 IMPLICIT INTEGER (1.4095), mXReceive 1 IMPLICIT INTEGER (1 u.4095)” Annex A (normative) Allocation of Object Identifiers Add
20、 the following Object /den tifiers to package(4) “link-reset-disconnect-n2-P(4) mLP-Counters-P(6)” t4-P(7) t4lVMO-P(8)” Add the following Object identifiers to attribute (7) “abnormalLinkDisconnectsReceived(41) abnormaILinkDisconnectsSent(42) linkResetsReceived(43) linkResetsSent(44) timesN2Reached(
21、45) iFramesReassignments(46) 4 0 ISOAEC mW(47) mX(48) receivedMlpFrameslnGuardRegion(49) receivedMlpResets(50) timesMT1 Expired(5 1) New Annex ISO/IEC 10742:1994/Amd.l:1995(E) Add the foiiowing informative annex E. ISO/IEC 10742:1994/Amd.l :1995(E) Annex E 0 ISO/IEC (informative) Additional attribut
22、es and action required for Systems E. 1 Introduction In complete intermediate Systems, such as a repeater, some attributes and actions are necessary to fill out the management of a complete System. These items are generic in the sense that they are required for managed Systems in general. The follow
23、ing items are defined to aid in the completeness of this International Standard, although it is recognized that they are outside the bounds of the definition area for a layer 2 Standard. E.2 Scope This annex defines additional attributes and an action that are necessary to the management of a comple
24、te intermediate System such as a repeater. They are not specifically related to a Data Link Layer Management Standard. When a g ener #ic Systems manag ement Standard is available with these definitions expected that this Portion of this International Standard will be removed. (or similar), it is E.3
25、 Attributes and Action - Attributes aTimeSinceSystemReset ATTRIBUTE DERIVED FROM AttributeModule.ResettableCounter32; BEHAVIOUR bTimeSinceSystemReset; DEFINED AS The time in tens of milliseconds since the last time that the System, including network management was reset. This may have been caused by
26、 ResetSystemAction or other means. This counter has a value of 0 when initialized. Though the count is reported in tens of milliseconds, the required resolution is to the nearest 100 ms. The clocking Source for the counter shall be accurate to within 1 % througout the full counting range.; NOTE: The
27、 approximate minimum time for counter rollover is 497 days. REGISTERED AS (iso(l)member-body(2) (840) 802dot3(1006) repeaterMgt(lg)attribute(7) sysResetTime(47); aRepeaterResetTimeStamp ATTRIBUTE WITH ATTRIBUTE SYNTAX AttributeModule.Integer32; BEHAVIOUR brepeaterResetTimeStamp; DEFINED AS Not a cou
28、nter, this attribute provides the value of aTimeSinceSystemReset when the repeater enters the START state. This value may never be greater than aTimeSinceSystemReset.; REGISTERED AS (iso(l)member-body(2) us(840)802dot3(10006)repeaterMgt(19) attribute(7) repeaterResetTimeStamp(48); - Action acResetSy
29、stemAction ACTION BEHAVIOUR acResetSystem; DEFINED AS This action initializes the resettable management counters of the System and also of all contained objects. The value of non-resettable counters may Change as a result of this action.; 6 0 ISOAEC ISO/IEC 10742:1994/Amd.1:1995(E) NOTE: This action
30、 may result in the loss of packets. MODE CONFIRMED; REGISTERED AS (iso( l)member-body(2) us(840)802dot3( 10006)repeaterMgt( 19) action(9) resetSystem(49) 7 lSO/IEC 10742:1994/Amd.1:1995(E) o ISO/IEC ICS 35.100.20 Descriptors: data processing, Information interchange, telecommunications, network interconnection, open Systems interconnection, data link layer, management, information. Price based on 7 pages
