1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
|
--
-- NTP MIB, Revision 0.2, 7/25/97
--
NTP-MIB DEFINITIONS ::= BEGIN
IMPORTS
Integer32, IpAddress, MODULE-IDENTITY, OBJECT-TYPE, Unsigned32,
enterprises
FROM SNMPv2-SMI
TEXTUAL-CONVENTION, TruthValue
FROM SNMPv2-TC;
ntpMIB MODULE-IDENTITY
LAST-UPDATED "199707251530Z"
ORGANIZATION
"University of Delaware"
CONTACT-INFO
"Adarsh Sethi
Department of Computer & Information Sciences
University of Delaware
Newark, DE 19716
Tel: +1 302 831 1945
E-mail: sethi@cis.udel.edu
David Mills
Department of Electrical Engineering
University of Delaware
Newark, DE 19716
Tel: +1 302 831 ????
E-mail: mills@ee.udel.edu"
DESCRIPTION
"This MIB module defines a MIB which provides mechanisms to
monitor and control an NTP server."
::= { udel 3 }
--
-- Position within the OID hierarchy of this MIB:
--
udel OBJECT IDENTIFIER
::= { enterprises 1277 }
--
-- The various groups defined within this MIB definition:
--
ntpSystem OBJECT IDENTIFIER
::= { ntpMIB 1 }
ntpPeers OBJECT IDENTIFIER
::= { ntpMIB 2 }
ntpFilter OBJECT IDENTIFIER
::= { ntpMIB 3 }
--
-- Textual conventions:
--
NTPTimeStamp ::= TEXTUAL-CONVENTION
DISPLAY-HINT "4x.4x"
STATUS current
DESCRIPTION
""
SYNTAX OCTET STRING (SIZE(8))
NTPLeapIndicator ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
""
SYNTAX INTEGER {
noWarning(0),
addSecond(1),
subtractSecond(2),
alarm(3) }
--
-- System Group
--
ntpSysLeap OBJECT-TYPE
SYNTAX NTPLeapIndicator
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" two-bit code warning of an impending leap
second to be inserted in the NTP timescale."
::= { ntpSystem 1 }
ntpSysStratum OBJECT-TYPE
SYNTAX Integer32 (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" indicating the stratum of the local clock.
0, unspecified
1, primary reference (e.g.,, calibrated atomic clock,
radio clock)
2-255, secondary reference (via NTP)"
::= { ntpSystem 2 }
ntpSysPrecision OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"signed integer indicating the precision
of the various clocks, in seconds to the nearest power
of two."
::= { ntpSystem 3 }
ntpSysRootDelay OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"the total roundtrip delay to the primary
reference source at the root of the synchronization
subnet, in seconds"
::= { ntpSystem 4 }
ntpSysRootDispersion OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"the maximum error relative to the primary
reference source at the root of the synchronization
subnet, in seconds. Only positive values greater
than zero are possible"
::= { ntpSystem 5 }
ntpSysRefId OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" the particular reference clock. In the case of
stratum 0 (unspecified) or stratum 1 (primary reference
source), this is a four-octet, left-justified,zero-padded
ASCII string.In the case of stratum 2 and greater (secondary
reference) this is the four-octet Internet address of the
peer selected for synchronization."
::= { ntpSystem 6 }
ntpSysRefTime OBJECT-TYPE
SYNTAX NTPTimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" the local time when the local clock was last
updated. If the local clock has neverbeen synchronized,
the value is zero."
::= { ntpSystem 7 }
ntpSysPoll OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" the minimum interval between transmitted
messages, in seconds as a power of two. For instance,
a value of six indicates a minimum interval of 64 seconds."
::= { ntpSystem 8 }
ntpSysPeer OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" the current synchronization source. Usually
this will be a pointer to a structure containing the peer
variables. The special value NULL indicates there is no
currently valid synchronization source."
::= { ntpSystem 9 }
ntpSysPhase OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
""
::= { ntpSystem 10 }
ntpSysFreq OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
""
::= { ntpSystem 11 }
ntpSysError OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
""
::= { ntpSystem 12 }
ntpSysClock OBJECT-TYPE
SYNTAX NTPTimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"the current local time. Local time is derived
from the hardware clock of the particular machine and
increments at intervals depending on the design used."
::= { ntpSystem 13 }
ntpSysSystem OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" the type of the local Operating System"
::= { ntpSystem 14 }
ntpSysProcessor OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" the type of the local Processor"
::= { ntpSystem 15 }
--
-- Peers Group
--
--
-- Peer Variables Table
--
ntpPeersVarTable OBJECT-TYPE
SYNTAX SEQUENCE OF NtpPeersVarEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { ntpPeers 1 }
ntpPeersVarEntry OBJECT-TYPE
SYNTAX NtpPeersVarEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
INDEX { ntpPeersAssocId }
::= { ntpPeersVarTable 1 }
NtpPeersVarEntry ::= SEQUENCE {
ntpPeersAssocId Unsigned32,
ntpPeersConfigured TruthValue,
ntpPeersPeerAddress IpAddress,
ntpPeersPeerPort Unsigned32,
ntpPeersHostAddress IpAddress,
ntpPeersHostPort Unsigned32,
ntpPeersLeap NTPLeapIndicator,
ntpPeersMode INTEGER,
ntpPeersStratum Integer32,
ntpPeersPeerPoll Integer32,
ntpPeersHostPoll Integer32,
ntpPeersPrecision Integer32,
ntpPeersRootDelay OCTET STRING,
ntpPeersRootDispersion OCTET STRING,
ntpPeersRefId OCTET STRING,
ntpPeersRefTime NTPTimeStamp,
ntpPeersOrgTime NTPTimeStamp,
ntpPeersReceiveTime NTPTimeStamp,
ntpPeersTransmitTime NTPTimeStamp,
ntpPeersUpdateTime NTPTimeStamp,
ntpPeersReach Unsigned32,
ntpPeersTimer Integer32,
ntpPeersOffset OCTET STRING,
ntpPeersDelay OCTET STRING,
ntpPeersDispersion OCTET STRING
}
ntpPeersAssocId OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { ntpPeersVarEntry 1 }
ntpPeersConfigured OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" This is a bit indicating that the association
was created from configuration information and should not
be demobilized if the peer becomes unreachable."
::= { ntpPeersVarEntry 2 }
ntpPeersPeerAddress OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" the Internet address of the peer"
::= { ntpPeersVarEntry 3 }
ntpPeersPeerPort OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" 16-bit port number of the peer."
::= { ntpPeersVarEntry 4 }
ntpPeersHostAddress OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" the Internet address of the host"
::= { ntpPeersVarEntry 5 }
ntpPeersHostPort OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" 16-bit port number of the host"
::= { ntpPeersVarEntry 6 }
ntpPeersLeap OBJECT-TYPE
SYNTAX NTPLeapIndicator
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" two-bit code warning of an impending leap
second to be inserted in the NTP timescale."
::= { ntpPeersVarEntry 7 }
ntpPeersMode OBJECT-TYPE
SYNTAX INTEGER {
unspecified(0),
symmetricActive(1),
symmetricPassive(2),
client(3),
server(4),
broadcast(5),
reservedControl(6),
reservedPrivate(7)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" the association mode,with values coded as
follows:
0, unspecified
1, symmetric active
2, symmetric passive
3, client
4, server
5, broadcast
6, reserved for NTP control messages
7, reserved for private use
"
::= { ntpPeersVarEntry 8 }
ntpPeersStratum OBJECT-TYPE
SYNTAX Integer32 (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" indicating the stratum of the peer clock.
0, unspecified
1, primary reference (e.g.,, calibrated atomic clock,
radio clock)
2-255, secondary reference (via NTP)"
::= { ntpPeersVarEntry 9 }
ntpPeersPeerPoll OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"poll interval of the peer"
::= { ntpPeersVarEntry 10 }
ntpPeersHostPoll OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"poll interval of the host"
::= { ntpPeersVarEntry 11 }
ntpPeersPrecision OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"the same as the systemPrecision except this is
for the peer"
::= { ntpPeersVarEntry 12 }
ntpPeersRootDelay OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"the same as the systemRootDealy except this is for
the peer"
::= { ntpPeersVarEntry 13 }
ntpPeersRootDispersion OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"the same as the systemDispersion except this is for
the peer"
::= { ntpPeersVarEntry 14 }
ntpPeersRefId OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"the same as the systemRefid except this is for
the peer"
::= { ntpPeersVarEntry 15 }
ntpPeersRefTime OBJECT-TYPE
SYNTAX NTPTimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"the same as the systemRefTime except this is for
the peer"
::= { ntpPeersVarEntry 16 }
ntpPeersOrgTime OBJECT-TYPE
SYNTAX NTPTimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" the local time at the peer when its latest
NTP message was sent. If the peer becomes unreachable the
value is set to zero."
::= { ntpPeersVarEntry 17 }
ntpPeersReceiveTime OBJECT-TYPE
SYNTAX NTPTimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"the local time when the latest NTP message
from the peer arrived. If the peer becomes unreachable the
value is set to zero."
::= { ntpPeersVarEntry 18 }
ntpPeersTransmitTime OBJECT-TYPE
SYNTAX NTPTimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"the local time at which the NTP message
departed the sender."
::= { ntpPeersVarEntry 19 }
ntpPeersUpdateTime OBJECT-TYPE
SYNTAX NTPTimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" "
::= { ntpPeersVarEntry 20 }
ntpPeersReach OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"a shift register of NTP.WINDOW bits used to determine
the reachability status of the peer, with bits entering
from the least significant (rightmost) end. A peer is
considered reachable if at least one bit in this register is
set to one."
::= { ntpPeersVarEntry 21 }
ntpPeersTimer OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
""
::= { ntpPeersVarEntry 22 }
ntpPeersOffset OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
""
::= { ntpPeersVarEntry 23 }
ntpPeersDelay OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
""
::= { ntpPeersVarEntry 24 }
ntpPeersDispersion OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
""
::= { ntpPeersVarEntry 25 }
--
-- Filter Group
--
-- Implementation of this group is optional. It must be implemented
-- when the filter and selection algorithms described in Section 4
-- of RFC 1305 are used.
--
--
-- Filter Group Peer Variables Table
--
ntpFilterPeersVarTable OBJECT-TYPE
SYNTAX SEQUENCE OF NtpFilterPeersVarEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table is an extension of the Peer Variables Table
in the Peer Group."
::= { ntpFilter 1 }
ntpFilterPeersVarEntry OBJECT-TYPE
SYNTAX NtpFilterPeersVarEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
AUGMENTS { ntpPeersVarEntry }
::= { ntpFilterPeersVarTable 1 }
NtpFilterPeersVarEntry ::= SEQUENCE {
ntpFilterValidEntries Integer32
}
ntpFilterValidEntries OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of valid entries for a peer in the Filter Register Table."
::= { ntpFilterPeersVarEntry 1 }
--
-- Filter Register Table
--
ntpFilterRegisterTable OBJECT-TYPE
SYNTAX SEQUENCE OF NtpFilterRegisterEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { ntpFilter 2 }
ntpFilterRegisterEntry OBJECT-TYPE
SYNTAX NtpFilterRegisterEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
INDEX { ntpPeersAssocId, ntpFilterIndex }
::= { ntpFilterRegisterTable 1 }
NtpFilterRegisterEntry ::= SEQUENCE {
ntpFilterIndex Unsigned32,
ntpFilterPeersOffset OCTET STRING,
ntpFilterPeersDelay OCTET STRING,
ntpFilterPeersDispersion OCTET STRING
}
ntpFilterIndex OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { ntpFilterRegisterEntry 1 }
ntpFilterPeersOffset OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"the offset of the peer clock relative to the
local clock in seconds"
::= { ntpFilterRegisterEntry 2 }
ntpFilterPeersDelay OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"roundtrip delay of the peer clock relative to the
local clock over the network path between them, in seconds.
this variable can take on both positive and negative values,
depending on clock precision and skew-error accumulation."
::= { ntpFilterRegisterEntry 3 }
ntpFilterPeersDispersion OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"the maximum error of the peer clock relative to the
local clock over the network path between them, in seconds.
Only positive values greater than zero are possible."
::= { ntpFilterRegisterEntry 4 }
END
|