1、ITU-T RECMN*M.364L 94 m 4862591 O600076 LB9 m INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU M.3641 (1 0/94) MAINTENANCE INTEGRATED SERVICES DIGITAL NETWORKS MANAGEMENT INFORMATION MODEL FOR THE MANAGEMENT OF THE DATA LINK AND NETWORK LAYER OF THE ISDN D-
2、CHANNEL ITU-T Recommendation M.3641 (Previously CCIlT Recommendation”) ITU-T RECNN*!.3b41 74 = 48b259L Ob00077 015 H FOREWORD The ITU-T (Telecommunication Standardization Sector) is a permanent organ of the International Telecommunication Union (ITU). The ITU-T is responsible for studying technical,
3、 operating and tariff questions and issuing Recommen- dations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, establishes the topics for study by the ITU-T Study Groups which, i
4、n their turn, produce Recommendations on these topics. The approval of Recommendations by the Members of the ITU-T is covered by the procedure laid down in WTSC Resolution No. 1 (Helsinki, March 1-12, 1993). ITU-T Recommendation M.3641 was prepared by ITU-T Study Group 4 (1993-1996) and was approved
5、 under the WTSC Resolution No. 1 procedure on the 15th of October 1994. NOTE In this Recommendation, the expression “Administration” is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. O ITU 1995 All rights reserved. No part of this publicat
6、ion may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU. . . CONTENTS Page 1 Overview of the Model I 2 Managed object classes 2.1 Access port ISDN . 2.2 D Channel . 2.3 D-channel log . 2
7、.4 Error frames log record . 2.5 Invalid frames log record 2.6 Managed data link D-channel . 2.7 2.8 Managed data link history data . 2.9 2.10 Managed network layer current data 2.1 1 Managed network layer history data . 2.12 Message call reference error log record 2.13 Other special message log rec
8、ord . 2.14 Special message type log record . 2.15 Timer expiry network log record 2.16 Unexpected frames log record 3 Packages . 3.1 Access port ISDN . 3.2 D-channel Managed data link current data . Managed network layer D-channel . 3.3 D-channel log . Error frames log record . 3.4 3.5 3.6 3.7 3.8 I
9、nvalid frames notification 3.9 Message call reference error current data . 3.10 3.1 1 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 3.20 3.21 Invalid frames log record Invalid frames current data . Invalid frames history data . Message call reference error history data . Message call reference error log r
10、ecord Managed data link D-channel . Managed data link current data . Managed data link history data . Managed network layer D-channel . Managed network layer current data Message call reference error notification Managed network layer history data . Other special message current data . Other special
11、 message log record . Other special message notification . 4 4 4 4 4 4 4 5 5 5 5 5 6 6 6 6 6 6 6 7 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 11 11 11 12 Recommendation M.3641 (10194) i ITU-T RECMN*M.364L 94 4862.593 Ob00079 998 M 3.22 Other special message history data . 3.23 Special message type log record
12、. 3.24 Timer expiry network log record 3.25 Unexpected frames log record Name bindings . 4.1 Access port ISDN - Managed element . 4.2 D-channel log - Managed element . 4.3 D-channel - Access port ISDN . 4.4 Managed data link D-channel - D-channel 4.5 Managed network layer D-channel - D-channel 4.6 M
13、anaged data link current data - Managed data link D-channel . 4.7 Managed network layer current data - Managed network layer D-channel . Attributes 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.1 1 5.12 5.13 5.14 5.15 5.16 5.17 5.18 5.19 5.20 5.21 5.22 5.23 5.24 5.25 5.26 5.27 5.28 5.29 5.30 5.31 5.32
14、Call Reference Hag Call Reference Value Cause Value Data Link State . Error Frames . Frame Type . Invalid Frames Managed data link D-channel identification . Managed network layer D-channel identification . Message call reference error . Message call reference errors . Messages too short Messages wi
15、th general information element missing . Messages with mandatory information element missing Message type Message with wrong protocol discriminator . Number of frames received . Number of frames retransmitted . Number of frames transmitted Number of frames with frame check sequence error Number of i
16、nvalid frames . Number of timer 303 expiries . Number of timer 3 1 O expiries . Oldest record age Other special message . Received . Relating To Active Call Restart messages received Restart messages transmitted Special message type Status messages received Status messages transmitted Page 12 12 12
17、12 13 13 13 13 13 14 14 14 15 15 15 15 16 16 16 16 16 16 17 17 17 17 18 18 18 18 18 18 19 19 19 19 19 20 20 20 20 20 20 21 21 II Recommendation M.3641 (10/94) ITU-T RECMN*M*3641 94 4862591 Ob00080 bOT 5.33 TE1 value 5.34 Timer expiry network . 5.35 Type Of Error Frame 5.36 Type Of Timer 6 Notificati
18、ons . 6.1 . Error frames 6.2 . Invalid frames . 6.3 Message call reference error . 6.4 Oldest record less than limit . 6.5 Other special message . 6.6 Special message type 6.7 Timer expiry network . 5.37 Unexpected frames . 6.8 Unexpected frames . 7 ASN.1 Type definitions module . 8 Support objects
19、from other ITU-T Recommendations . 9 Functional unit . Definition of the fpmMonitorDchanne1 functional unit 1 O Conformance 11 References 9.1 9.2 Negotiation of the fpmh4onitorDchannel functional unit . Page 21 21 21 21 22 22 22 22 23 23 23 24 24 24 25 27 27 27 29 29 30 . Recommendation M.3641 (10/9
20、4) 111 ITU-T RECMN*M-364L 74 4862571 Ob00081 546 ABSTRACT This Recommendation provides the management information model of the Q3-interface in a TMN 8 for the management of the D-channels in an ISDN switch. In particular, it focuses on the fault and performance management of the data link and networ
21、k layer of ISDN D-channels. Managed objects are specified by using the OSI-management templates of Recommendation X.722 5. These specifications are based on the prosaic description of the D-channel management aspects as provided by Recommendation M.3640. KEYWORDS Fault Management, Management of ISDN
22、 D-channel, Performance Management. iv Recommendation M.3641 (10/94) ITU-T RECMN*M=3b4L 94 486259L Ob00082 482 accessPort ISDN Recommendation M.3641 r “Rec. Q.822“: “Rec. X.721“: Data Discriminator threshold eventforwarding dChanndLog MANAGEMENT INFORMATION MODEL FOR THE MANAGEMENT OF THE DATA LINK
23、AND NETWORK LAYER OF THE ISDN D-CHANNEL mgdDatank DChannel (Genevu, 1994) “Rec. X721“: attributevalue ChangeRecord mgdNetwLayer DChannel 1 Overview of the Model mgdDatank CurrentData This clause provides a conceptual framework for understanding how the various managed object classes are used to prov
24、ide the performance monitoring services described in this Recommendation. The managed objects defined in this Recommendation are derived from the managed object class definitions in Recommendations Q.822 2 and M.3100 6. They are based on the prosaic description of the D-channel management aspects as
25、 provided by Recommen- dation M.3640 11 and supersedes the definitions as contained in the appendix of M.3640 i. mgdNetwLayer CurrentData speciaiMessage Rec. X721“: unexpected The naming schema for the management of the ISDN D-channel data link and network layer is shown in Figure 1. 1 1 alarm Recor
26、d “Rec. M.3100“: managed Element Frames Twe Log Record Log Record mgdDatank HistoryData FIGURE 1M.3641 lustration of the naming schema (Arrows point from superior to subordinate object classes) T0405350-95/601 mgdNetwlayer HistoryData The monitored entities are the protocol machine objects mgdDataLi
27、nkDChanne1 for layer 2 and mgdNetwLayerDChanne1 for layer 3 contained in the D-channel objects. The inheritance hierarchy for the management of the ISDN D-channel data link and network layer is shown in Figure 2. Recommendation M.3641 (10/94) 1 2 ITU-T RECMN*M=3641 94 4862.593 Ob00083 319 I- I- Reco
28、mmendation M.3641 (10/94) The Current PM data is collected for the Monitored Objects by instances of mgdDataLinkCurrentData and mgdNetwLayerCurrentData object classes. Instances of the current data object classes are contained by the monitored object. The details on the behaviour of the current data
29、 objects regarding the collection and emission of reports are defined in Recommendation Q.822 2. mgdDataLink and mgdNetwLayer history data objects, defined as subclasses of historyData in Q.822 2 are contained in the respective current data objects. The history objects store the information collecte
30、d during the performance interval. The specific objects in the model are: - accessPortISDN Object - This object reflects the management view of an ISDN access port in a switch and is used for naming the D-channel objects). dChannel Object - This object reflects the management view of an ISDN D chann
31、el in a switch and is used for naming the mgdDataLinkDChanne1 and mgdNetwLayerDChanne1 objects1). dChannelLog Object - This object is the managed object for logging in case the protocol machine has detected one of the following events which are defined in clause 7: an operational state change, the r
32、eceipt of an invalid, error or unexpected frame, the receipt of a special message or other special message, a message call reference error or a timer expiry. errorFramesLogRecord Object - This object represents the logged information in the dChannelLog object in case of detection of the receipt of e
33、rror frames. invalidFramesLogRecord Object - This object represents the logged information in the dChannelLog object in case an invalid frame other than a frame with an FCS error was received. messageCallReferenceErrorLogRecord Object - This object represents the logged information in the dChannelLo
34、g object in case a message with a call reference error was detected. mgdDataLinkDChanne1 Object - This object is the managed object for which the performance measurements are being collected. It represents the resource Layer 2 protocol machine. mgdNetwLayerDChanne1 Object - This object is the manage
35、d object for which the performance measurements are being collected. It represents the resource Layer 3 protocol machine. mgdDataLinkCurrentData Object - This object contains the measurements for the layer 2 protocol machine being monitored for a specified time interval (e.g. 15 minutes). mgdNetwLay
36、erCurrentData Object - This object contains the measurements for the layer 3 protocol machine being monitored for a specified time interval (e.g. 15 minutes). mgdDataLinkHistoryData Object - This object will contain a copy of the performance attributes that are present in the mgdDataLinkCurrentData
37、object at the end of the current interval (e.g. 15 minutes). A new instance of this object class is created at the end of each interval. mgdNetwLayerHistoryData Object - This object will contain a copy of the performance attributes that are present in the mgdnetwlayerCurrentData object at the end of
38、 the current interval (e.g. 15 minutes). A new instance of this object class is created at the end of each interval. other Special MessageTypeLogRecord Object - This object represents the logged information in the dChannelLog object in case a STATUS or RESTART message was received or transmitted. -
39、specialMessageTypeLogRecord Object - This object represents the logged information in the dChannelLog object in case of the receipt or transmission of a DISCONNECT, RELEASE or RELEASE COMPLETE message. - timerExpiryNetworkLogRecord Object - This object represents the logged information in the dChann
40、elLog object in case of the expiry of timers T308, T309, T316 or T317. - - - - - - - - - - - - The accessPort ISDN and D-channel objects are currently for further study and will be further specified in Q-Series Recommendations. Recommendation M.3641 (10/94) 3 ITU-T RECNN+M.364L 94 W 4862593 Ob00085
41、191 W - unexpectedFramesLogRecord Object - This object represents the logged information in the dlhannellog object in case of the receipt of unexpected frames. In addition, the generic thresholdData and scanner X.738 support objects as defined in Recommendation 4.822 2 and log and eventLogRecord sup
42、port objects as defined in Recommendation X.721 4 are included in the model. 2 Managed object classes 2.1 Access port ISDN2) accessPortISDN MANAGED OBJECT CLASS DERIVED FROM CHARACTERIZED BY accessPortISDN-package; REGISTERED AS m3641ManagedObjectClass 1 ; “Recommendation M.3100 : 1992“: trailTermin
43、ationPointBidirectiona1; 2.2 D Channel2) dlhannel MANAGED OBJECT CLASS DERIVED FROM CHARACTERIZED BY dchannel-package; “Recommendation M.3100 : 1992“: connectionTerdnationPointBidirectiona1; REGISTERED AS m3641ManagedObjectClass 2 ; 2.3 D-channel log dChannelLog MANAGED OBJECT CLASS DERIVED FROM CHA
44、RACTERIZED BY dChannelLog-package; “Recommendation X.721 : 1992“:log; REGISTERED AS m3641ManagedObjectClass 3 ; 2.4 Error frames log record errorFramesLogRecord MANAGED OBJECT CLASS DERIVED FROM CHARACTERIZED BY errorFramesLogRecord-package; “Recommendation X.721 : 1992“:eventLogRecord; REGISTERED A
45、S m3641ManagedObjectClass 4 ; 2.5 Invalid frames log record invalidFramesLogRecord MANAGED OBJECT CLASS DERIVED FROM “Recommendation X.721: 1992“:eventLogRecord; CHARACTERIZED BY invalidFramesLogRecord-package; REGISTERED AS m3641ManagedObjectClass 5 ; 2.6 Managed data link D-channel mgdDataLinkDCha
46、nne1 MANAGED OBJECT CLASS DERIVED FROM “Recommendation X.721: 1992“:top; CHARACTERIZED BY mgdDataLinkDChanne1-package; CONDITIONAL PACKAGES invalidFramesNotifkation-package PRESENT IF “the events of invalid frame received are to be logged3).“; REGISTERED AS m3641ManagedObjectClass 6 ; 2, The accessp
47、ort ISDN and D-channel objects are currently for further study and will be further specified in Q-Series 3, This case is one of two alternatives (see Recommendation M.3640): the events of invaIid frame received may be counted or Recommendations. logged. 4 Recommendation M.3641 (10/94) ITU-T RECMN*M=
48、3643 74 4862573 0600086 028 2.7 Managed data link current data mgdDataLinkCurrentData MANAGED OBJECT CLASS DERIVED FROM “Recommendation Q.822 : 1993“:currentData; CHARACTERIZED BY “Recommendation Q.822 : 1993“:thresholdPkg, mgdDataLinkCurrentData-package; CONDITIONAL PACKAGES invaidFramesCurrentData
49、-package PRESENT IF “the events of invalid frame received are to be counted4).“; REGISTERED AS m3641ManagedObjectClass 7 ; 2.8 Managed data link history data mgdDataLinkHistoryData MANAGED OBJECT CLASS DERIVED FROM CHARACTERIZED BY mgdDataLinkHistoryData-package; CONDITIONAL PACKAGES invalidFramesHistoryData-package PRESENT IF “the events of invalid frame received are to be counted4)“ ; “Recommendation Q.822 : 1993“:historyData; REGISTERED AS m3641ManagedObjectC1ass 8); 2.9 Managed network layer D-channel mgdNetwLayerDChanne1 MANAGED OBJEC
