-
Notifications
You must be signed in to change notification settings - Fork 2
/
Copy pathdraft-ietf-ospf-yang-23.xml
5927 lines (5520 loc) · 186 KB
/
draft-ietf-ospf-yang-23.xml
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
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<?xml version="1.0" encoding="US-ASCII"?>
<!DOCTYPE rfc SYSTEM "rfc2629.dtd" [
<!ENTITY RFC905 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.0905.xml'>
<!ENTITY RFC1765 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.1765.xml'>
<!ENTITY RFC1793 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.1793.xml'>
<!ENTITY RFC2119 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.2119.xml'>
<!ENTITY RFC2328 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.2328.xml'>
<!ENTITY RFC3623 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.3623.xml'>
<!ENTITY RFC3630 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.3630.xml'>
<!ENTITY RFC3688 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.3688.xml'>
<!ENTITY RFC4552 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.4552.xml'>
<!ENTITY RFC4915 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.4915.xml'>
<!ENTITY RFC5185 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5185.xml'>
<!ENTITY RFC5187 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5187.xml'>
<!ENTITY RFC5309 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5309.xml'>
<!ENTITY RFC3101 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.3101.xml'>
<!ENTITY RFC4576 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.4576.xml'>
<!ENTITY RFC4577 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.4577.xml'>
<!ENTITY RFC4750 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.4750.xml'>
<!ENTITY RFC4973 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.4973.xml'>
<!ENTITY RFC5082 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5082.xml'>
<!ENTITY RFC5250 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5250.xml'>
<!ENTITY RFC5286 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5286.xml'>
<!ENTITY RFC5329 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5329.xml'>
<!ENTITY RFC5340 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5340.xml'>
<!ENTITY RFC5443 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5443.xml'>
<!ENTITY RFC5613 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5613.xml'>
<!ENTITY RFC5642 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5642.xml'>
<!ENTITY RFC5643 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5643.xml'>
<!ENTITY RFC5649 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5649.xml'>
<!ENTITY RFC5709 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5709.xml'>
<!ENTITY RFC5714 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5714.xml'>
<!ENTITY RFC5838 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5838.xml'>
<!ENTITY RFC5880 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5880.xml'>
<!ENTITY RFC5881 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.5881.xml'>
<!ENTITY RFC6020 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.6020.xml'>
<!ENTITY RFC6241 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.6241.xml'>
<!ENTITY RFC6242 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.6242.xml'>
<!ENTITY RFC6565 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.6565.xml'>
<!ENTITY RFC6860 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.6860.xml'>
<!ENTITY RFC6845 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.6845.xml'>
<!ENTITY RFC6987 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.6987.xml'>
<!ENTITY RFC6991 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.6991.xml'>
<!ENTITY RFC7166 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.7166.xml'>
<!ENTITY RFC7474 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.7474.xml'>
<!ENTITY RFC7490 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.7490.xml'>
<!ENTITY RFC7684 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.7684.xml'>
<!ENTITY RFC7770 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.7770.xml'>
<!ENTITY RFC7777 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.7777.xml'>
<!ENTITY RFC7950 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.7950.xml'>
<!ENTITY RFC8042 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.8042.xml'>
<!ENTITY RFC8040 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.8040.xml'>
<!ENTITY RFC8174 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.8174.xml'>
<!ENTITY RFC8177 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.8177.xml'>
<!ENTITY RFC8294 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.8294.xml'>
<!ENTITY RFC8340 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.8340.xml'>
<!ENTITY RFC8341 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.8341.xml'>
<!ENTITY RFC8342 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.8342.xml'>
<!ENTITY RFC8343 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.8343.xml'>
<!ENTITY RFC8349 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.8349.xml'>
<!ENTITY RFC8405 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.8405.xml'>
<!ENTITY RFC8446 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.8446.xml'>
<!ENTITY RFC8476 PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml/reference.RFC.8476.xml'>
<!ENTITY I-D.ietf-bfd-yang PUBLIC ''
'http://xml.resource.org/public/rfc/bibxml-ids/reference.I-D.draft-ietf-bfd-yang-17.xml'>
]>
<?xml-stylesheet type='text/xsl' href='rfc2629.xslt' ?>
<?rfc strict="no" ?>
<?rfc toc="yes" ?>
<?rfc symrefs="yes" ?>
<?rfc sortrefs="yes"?>
<?rfc rfcedstyle="yes" ?>
<?rfc subcompact="no" ?>
<rfc category="std" docName="draft-ietf-ospf-yang-23" ipr="trust200902">
<!-- category values: std, bcp, info, exp, and historic
ipr values: full3667, noModification3667, noDerivatives3667
you can add the attributes updates="NNNN" and obsoletes="NNNN"
they will automatically be output with "(if approved)" -->
<!-- ***** FRONT MATTER ***** -->
<front>
<!-- The abbreviated title is used in the page header - it is only necessary if the
full title is longer than 39 characters -->
<title abbrev="OSPF YANG Data Model">YANG Data Model for OSPF Protocol
</title>
<!-- add 'role="editor"' below for the editors if appropriate -->
<!-- Another author who claims to be an editor -->
<author fullname="Derek Yeung" initials="D" surname="Yeung">
<organization>Arrcus</organization>
<address>
<phone></phone>
<email>[email protected]</email>
<!-- uri and facsimile elements may also be added -->
</address>
</author>
<author fullname="Yingzhen Qu" initials="Y" surname="Qu">
<organization>Huawei</organization>
<address>
<postal>
<street>2330 Central Expressway</street>
<!-- Reorder these if your country does things differently -->
<city>Santa Clara</city>
<region>CA</region>
<code>95050</code>
<country>USA</country>
</postal>
<phone></phone>
<email>[email protected]</email>
<!-- uri and facsimile elements may also be added -->
</address>
</author>
<author fullname="Jeffrey Zhang" initials="J" surname="Zhang">
<organization>Juniper Networks</organization>
<address>
<postal>
<street>10 Technology Park Drive</street>
<!-- Reorder these if your country does things differently -->
<city>Westford</city>
<region>MA</region>
<code>01886</code>
<country>USA</country>
</postal>
<phone></phone>
<email>[email protected]</email>
<!-- uri and facsimile elements may also be added -->
</address>
</author>
<author fullname="Ing-Wher Chen" initials="I." surname="Chen">
<organization>The MITRE Corporation</organization>
<address>
<email>[email protected]</email>
</address>
</author>
<author fullname="Acee Lindem" initials="A." surname="Lindem">
<organization>Cisco Systems</organization>
<address>
<postal>
<street>301 Midenhall Way</street>
<city>Cary, NC 27513</city>
</postal>
<email>[email protected]</email>
</address>
</author>
<date/>
<!-- If the month and year are both specified and are the current ones, xml2rfc will fill
in the current day for you. If only the current year is specified, xml2rfc will fill
in the current day and month for you. If the year is not the current one, it is
necessary to specify at least a month (xml2rfc assumes day="1" if not specified for the
purpose of calculating the expiry date). With drafts it is normally sufficient to
specify just the year. -->
<!-- Meta-data Declarations -->
<area>General</area>
<workgroup>Internet</workgroup>
<!-- WG name at the upperleft corner of the doc,
IETF is fine for individual submissions.
If this element is not present, the default is "Network Working Group",
which is used by the RFC Editor as a nod to the history of the IETF. -->
<!-- Keywords will be incorporated into HTML output
files in a meta tag but they have no effect on text or nroff
output. If you submit your draft to the RFC Editor, the
keywords will be used for the search engine. -->
<abstract>
<t>This document defines a YANG data model that can be
used to configure and manage OSPF. The model is based on
YANG 1.1 as defined in RFC 7950 and conforms to the
Network Management Datastore Architecture (NDMA) as described
in RFC 8342.</t>
</abstract>
</front>
<middle>
<section title="Overview">
<t>YANG <xref target="RFC6020"></xref><xref target="RFC7950"/> is a data
definition language used to define the contents of a conceptual data store
that allows networked devices to be managed using NETCONF
<xref target="RFC6241"></xref>. YANG is proving relevant beyond its
initial confines, as bindings to other interfaces (e.g., ReST) and
encodings other than XML (e.g., JSON) are being defined. Furthermore,
YANG data models can be used as the basis for implementation of other
interfaces, such as CLI and programmatic APIs.</t>
<t>This document defines a YANG data model that can be used to configure
and manage OSPF and it is an augmentation to the core routing data model.
It fully conforms to the Network Management Datastore Architecture (NDMA)
<xref target="RFC8342"/>.
A core routing data model is defined in
<xref target="RFC8349"></xref>,
and it provides the basis for the development of data models for routing
protocols. The interface data model is defined in
<xref target="RFC8343"></xref> and is used for referencing
interfaces from the routing protocol. The key-chain data model used for
OSPF authentication is defined in <xref target="RFC8177"></xref>
and provides both a reference to configured key-chains and an
enumeration of cryptographic algorithms.</t>
<t>Both OSPFv2 <xref target="RFC2328"></xref> and OSPFv3
<xref target="RFC5340"></xref> are supported. In addition to
the core OSPF protocol, features described in other
OSPF RFCs are also supported. These includes demand circuit
<xref target="RFC1793"></xref>, traffic engineering <xref target="RFC3630"></xref>,
multiple address family <xref target="RFC5838"></xref>, graceful restart
<xref target="RFC3623"></xref> <xref target="RFC5187"></xref>,
NSSA <xref target="RFC3101"></xref>, and OSPFv2 or OSPFv3 as a PE-CE Protocol
<xref target="RFC4577"></xref>, <xref target="RFC6565"></xref>.
These non-core features are optional in the OSPF data model.</t>
<section title="Requirements Language">
<t>The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL
NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED",
"MAY", and "OPTIONAL" in this document are to be interpreted as
described in BCP 14 <xref target="RFC2119"/> <xref target="RFC8174"/>
when, and only when, they appear in all capitals, as shown here.</t>
</section>
<section title="Tree Diagrams">
<t>This document uses the graphical representation of data models
defined in <xref target="RFC8340"/>.</t>
</section>
</section>
<section title="Design of Data Model">
<t>Although the basis of OSPF configuration elements like routers,
areas, and interfaces remains the same, the detailed configuration
model varies among router vendors. Differences are observed in terms
of how the protocol instance is tied to the routing domain, how multiple
protocol instances are be instantiated among others.</t>
<t>The goal of this document is to define a data model that provides a common user
interface to the OSPFv2 and OSPFv3 protocols. There is very little information that is
designated as "mandatory", providing freedom for vendors to adapt this data model to their
respective product implementations.</t>
<section title="OSPF Operational State">
<t>The OSPF operational state is included in the same tree as OSPF configuration
consistent with the Network Management Datastore Architecture
<xref target="RFC8342"></xref>. Consequently, only the routing container
in the ietf-routing model <xref target="RFC8349"/> is augmented. The routing-state container
is not augmented.</t>
</section>
<section title="Overview">
<t>The OSPF YANG module defined in this document has all the common building
blocks for the OSPF protocol.</t>
<t>The OSPF YANG module augments the /routing/control-plane-protocols/control-plane-protocol
path defined in the ietf-routing module. The ietf-ospf model defines a single instance of
OSPF which may be instantiated as an OSPFv2 or OSPFv3 instance. Multiple instances are
instantiated as multiple control-plane protocols instances.</t>
<figure align="center">
<artwork align="left">
module: ietf-ospf
augment /rt:routing/rt:control-plane-protocols/
rt:control-plane-protocol:
+--rw ospf
.
.
+--rw operation-mode? identityref
+--rw af? identityref
.
.
+--rw areas
| +--rw area* [area-id]
| +--rw area-id area-id-type
| .
| .
| +--rw virtual-links
| | +--rw virtual-link* [transit-area-id router-id]
| | .
| | .
| +--rw sham-links {pe-ce-protocol}?
| | +--rw sham-link* [local-id remote-id]
| | .
| | .
| +--rw interfaces
| +--rw interface* [name]
| .
| .
+--rw topologies {multi-topology}?
+--rw topology* [name]
.
.
</artwork>
</figure>
<t>The ospf module is intended to match to the vendor specific
OSPF configuration construct that is identified by the local identifier 'name'.</t>
<t>The ospf container includes one OSPF protocol instance.
The instance includes OSPF router level configuration and operational
state.</t>
<t>The area and area/interface containers respectively
define the OSPF configuration and operational state for OSPF areas
and interfaces.</t>
<t>The topologies container defines the OSPF configuration and operational
state for OSPF topologies when the multi-topology feature is supported.</t>
</section>
<section title="OSPFv2 and OSPFv3">
<t>The data model defined herein supports both OSPFv2 and OSPFv3.</t>
<t>The field 'version' is used to indicate the OSPF version and is
mandatory. Based on the configured version, the data model varies
to accommodate the differences between OSPFv2 and OSPFv3.</t>
</section>
<section title="Optional Features">
<t>Optional features are beyond the basic OSPF configuration and
it is the responsibility of each vendor to decide whether to
support a given feature on a particular device.</t>
<t>This model defines the following optional features:
<list style="numbers">
<t>multi-topology: Support Multi-Topology Routing (MTR)
<xref target="RFC4915"/>.</t>
<t>multi-area-adj: Support OSPF multi-area adjacency
<xref target="RFC5185"/>.</t>
<t>explicit-router-id: Support explicit per-instance Router-ID
specification.</t>
<t>demand-circuit: Support OSPF demand circuits
<xref target="RFC1793"/>.</t>
<t>mtu-ignore: Support disabling OSPF Database Description
packet MTU mismatch checking.</t>
<t>lls: Support OSPF link-local signaling (LLS)
<xref target="RFC5613"/>.</t>
<t>prefix-suppression: Support OSPF prefix advertisement
suppression <xref target="RFC6860"/>.</t>
<t>ttl-security: Support OSPF Time to Live (TTL) security check
support <xref target="RFC5082"/>.</t>
<t>nsr: Support OSPF Non-Stop Routing (NSR). The OSPF NSR feature allows
a router with redundant control-plane capability (e.g., dual Route-Processor (RP)
cards) to maintain its state and adjacencies during planned and unplanned
control-plane processing restarts. It differs from graceful-restart or Non-Stop
Forwarding (NSF) in that no protocol signaling or assistance from adjacent OSPF
neighbors is required to recover control-plane state.</t>
<t>graceful-restart: Support Graceful OSPF Restart
<xref target="RFC3623"/>, <xref target="RFC5187"/>.</t>
<t>auto-cost: Support OSPF interface cost calculation according to
reference bandwidth <xref target="RFC2328"/>.</t>
<t>max-ecmp: Support configuration of the maximum number of
Equal-Cost Multi-Path (ECMP) paths.</t>
<t>max-lsa: Support configuration of the maximum number of LSAs
the OSPF instance will accept <xref target="RFC1765"/>.</t>
<t>te-rid: Support configuration of the Traffic Engineering (TE)
Router-ID, i.e., the Router Address described in Section 2.4.1
of <xref target="RFC3630"/> or the Router IPv6 Address TLV
described in Section 3 of <xref target="RFC5329"/>.</t>
<t>ldp-igp-sync: Support LDP IGP synchronization
<xref target="RFC5443"/>.</t>
<t>ospfv2-authentication-trailer: Support OSPFv2 Authentication
trailer as specified in <xref target="RFC5709"/> or
<xref target="RFC7474"/>.</t>
<t>ospfv3-authentication-ipsec: Support IPsec for OSPFv3
authentication <xref target="RFC4552"/>.</t>
<t>ospfv3-authentication-trailer: Support OSPFv3 Authentication
trailer as specified in <xref target="RFC7166"/>.</t>
<t>fast-reroute: Support IP Fast Reroute (IP-FRR)
<xref target="RFC5714"/>.</t>
<t>node-flag: Support node-flag for OSPF prefixes.
<xref target="RFC7684"/>.</t>
<t>node-tag: Support node admin tag for OSPF instances
<xref target="RFC7777"/>.</t>
<t>lfa: Support Loop-Free Alternates (LFAs)
<xref target="RFC5286"/>.</t>
<t>remote-lfa: Support Remote Loop-Free Alternates (R-LFA)
<xref target="RFC7490"/>.</t>
<t>stub-router: Support RFC 6987 OSPF Stub Router
advertisement <xref target="RFC6987"/>.</t>
<t>pe-ce-protocol: Support OSPF as a PE-CE protocol
<xref target="RFC4577"/>, <xref target="RFC6565"/>.</t>
<t>ietf-spf-delay: Support IETF SPF delay algorithm
<xref target="RFC8405"/>.</t>
<t>bfd: Support BFD detection of OSPF neighbor reachability
<xref target="RFC5880"/>, <xref target="RFC5881"/>,
and <xref target="I-D.ietf-bfd-yang"/>.</t>
<t>hybrid-interface: Support OSPF Hybrid Broadcast and Point-to-Point
Interfaces <xref target="RFC6845"/>.</t>
<t>two-part-metric: Support OSPF Two-Part Metric
<xref target="RFC8042"/>.</t>
</list></t>
<t>It is expected that vendors will support additional
features through vendor-specific augmentations.</t>
</section>
<section title="OSPF Router Configuration/Operational State">
<t>The ospf container is the top-level container in this data model.
It represents an OSPF protocol instance and contains the router level
configuration and operational state.
The operational state includes the instance statistics, IETF SPF delay statistics,
AS-Scoped Link State Database, local RIB, SPF Log, and the LSA log.</t>
<figure align="center">
<artwork align="left">
module: ietf-ospf
augment /rt:routing/rt:control-plane-protocols/
rt:control-plane-protocol:
+--rw ospf
.
.
+--rw af iana-rt-types:address-family
+--rw enable? boolean
+--rw explicit-router-id? rt-types:router-id
| {explicit-router-id}?
+--rw preference
| +--rw (scope)?
| +--:(single-value)
| | +--rw all? uint8
| +--:(multi-values)
| +--rw (granularity)?
| | +--:(detail)
| | | +--rw intra-area? uint8
| | | +--rw inter-area? uint8
| | +--:(coarse)
| | +--rw internal? uint8
| +--rw external? uint8
+--rw nsr {nsr}?
| +--rw enable? boolean
+--rw graceful-restart {graceful-restart}?
| +--rw enable? boolean
| +--rw helper-enable? boolean
| +--rw restart-interval? uint16
| +--rw helper-strict-lsa-checking? boolean
+--rw auto-cost {auto-cost}?
| +--rw enable? boolean
| +--rw reference-bandwidth? uint32
+--rw spf-control
| +--rw paths? uint16 {max-ecmp}?
| +--rw ietf-spf-delay {ietf-spf-delay}?
| +--rw initial-delay? uint16
| +--rw short-delay? uint16
| +--rw long-delay? uint16
| +--rw hold-down? uint16
| +--rw time-to-learn? uint16
| +--ro current-state? enumeration
| +--ro remaining-time-to-learn? uint16
| +--ro remaining-hold-down? uint16
| +--ro last-event-received? yang:timestamp
| +--ro next-spf-time? yang:timestamp
| +--ro last-spf-time? yang:timestamp
+--rw database-control
| +--rw max-lsa? uint32 {max-lsa}?
+--rw stub-router {stub-router}?
| +--rw (trigger)?
| +--:(always)
| +--rw always!
+--rw mpls
| +--rw te-rid {te-rid}?
| | +--rw ipv4-router-id? inet:ipv4-address
| | +--rw ipv6-router-id? inet:ipv6-address
| +--rw ldp
| +--rw igp-sync? boolean {ldp-igp-sync}?
+--rw fast-reroute {fast-reroute}?
| +--rw lfa {lfa}?
+--ro protected-routes
| +--ro af-stats* [af prefix alternate]
| +--ro af iana-rt-types:address-family
| +--ro prefix string
| +--ro alternate string
| +--ro alternate-type? enumeration
| +--ro best? boolean
| +--ro non-best-reason? string
| +--ro protection-available? bits
| +--ro alternate-metric1? uint32
| +--ro alternate-metric2? uint32
| +--ro alternate-metric3? uint32
+--ro unprotected-routes
| +--ro af-stats* [af prefix]
| +--ro af iana-rt-types:address-family
| +--ro prefix string
+--ro protection-statistics* [frr-protection-method]
| +--ro frr-protection-method string
| +--ro af-stats* [af]
| +--ro af iana-rt-types:address-family
| +--ro total-routes? uint32
| +--ro unprotected-routes? uint32
| +--ro protected-routes? uint32
| +--ro linkprotected-routes? uint32
| +--ro nodeprotected-routes? uint32
+--rw node-tags {node-tag}?
| +--rw node-tag* [tag]
| +--rw tag uint32
+--ro router-id?
+--ro local-rib
| +--ro route* [prefix]
| +--ro prefix inet:ip-prefix
| +--ro next-hops
| | +--ro next-hop* [next-hop]
| | +--ro outgoing-interface? if:interface-ref
| | +--ro next-hop inet:ip-address
| +--ro metric? uint32
| +--ro route-type? route-type
| +--ro route-tag? uint32
+--ro statistics
| +--ro originate-new-lsa-count? yang:counter32
| +--ro rx-new-lsas-count? yang:counter32
| +--ro as-scope-lsa-count? yang:gauge32
| +--ro as-scope-lsa-chksum-sum? uint32
| +--ro database
| +--ro as-scope-lsa-type*
| +--ro lsa-type? uint16
| +--ro lsa-count? yang:gauge32
| +--ro lsa-cksum-sum? int32
+--ro database
| +--ro as-scope-lsa-type* [lsa-type]
| +--ro as-scope-lsas
| +--ro as-scope-lsa* [lsa-id adv-router]
| +--ro lsa-id union
| +--ro adv-router inet:ipv4-address
| +--ro decoded-completed? boolean
| +--ro raw-data? yang:hex-string
| +--ro (version)?
| +--:(ospfv2)
| | +--ro ospfv2
. .
. .
| +--:(ospfv3)
| +--ro ospfv3
.
.
+--ro spf-log
| +--ro event* [id]
| +--ro id uint32
| +--ro spf-type? enumeration
| +--ro schedule-timestamp? yang:timestamp
| +--ro start-timestamp? yang:timestamp
+--ro end-timestamp? yang:timestamp
| +--ro trigger-lsa*
| +--ro area-id? area-id-type
| +--ro link-id? union
| +--ro type? uint16
| +--ro lsa-id? yang:dotted-quad
| +--ro adv-router? yang:dotted-quad
| +--ro seq-num? uint32
+--ro lsa-log
| +--ro event* [id]
| +--ro id uint32
| +--ro lsa
| | +--ro area-id? area-id-type
| | +--ro link-id? union
| | +--ro type? uint16
| | +--ro lsa-id? yang:dotted-quad
| | +--ro adv-router? yang:dotted-quad
| | +--ro seq-num? uint32
| +--ro received-timestamp? yang:timestamp
| +--ro reason? identityref
.
.
</artwork>
</figure>
</section>
<section title="OSPF Area Configuration/Operational State">
<t>The area container contains OSPF area configuration and the list
of interface containers representing all the OSPF interfaces
in the area.
The area operational state includes the area statistics and the Area
Link State Database (LSDB).</t>
<figure align="center">
<artwork align="left">
module: ietf-ospf
augment /rt:routing/rt:control-plane-protocols/
rt:control-plane-protocol:
+--rw ospf
.
.
+--rw areas
| +--rw area* [area-id]
| +--rw area-id area-id-type
| +--rw area-type? identityref
| +--rw summary? boolean
| +--rw default-cost? uint32
| +--rw ranges
| | +--rw range* [prefix]
| | +--rw prefix inet:ip-prefix
| | +--rw advertise? boolean
| | +--rw cost? uint24
| +--ro statistics
| | +--ro spf-runs-count? yang:counter32
| | +--ro abr-count? yang:gauge32
| | +--ro asbr-count? yang:gauge32
| | +--ro ar-nssa-translator-event-count?
| | yang:counter32
| | +--ro area-scope-lsa-count? yang:gauge32
| | +--ro area-scope-lsa-cksum-sum? int32
| | +--ro database
| | +--ro area-scope-lsa-type*
| | +--ro lsa-type? uint16
| | +--ro lsa-count? yang:gauge32
| | +--ro lsa-cksum-sum? int32
| +--ro database
| | +--ro area-scope-lsa-type* [lsa-type]
| | +--ro lsa-type uint16
| | +--ro area-scope-lsas
| | +--ro area-scope-lsa* [lsa-id adv-router]
| | +--ro lsa-id union
. . .
. . .
| | +--ro (version)?
| | +--:(ospfv2)
| | | +--ro ospfv2
| | | +--ro header
. . . .
. . . .
| | | +--ro body
| | | +--ro router
. . . .
. . . .
| | | +--ro network
. . . .
. . . .
| | | +--ro summary
. . . .
. . . .
| | | +--ro external
. . . .
. . . .
| | | +--ro opaque
. . . .
. . . .
| | +--:(ospfv3)
| | +--ro ospfv3
| | +--ro header
. . .
. . .
| | +--ro body
| | +--ro router
. . .
. . .
| | +--ro network
. . .
. . .
| | +--ro inter-area-prefix
. . .
. . .
| | +--ro inter-area-router
. . .
. . .
| | +--ro as-external
. . .
. . .
| | +--ro nssa
. . .
. . .
| | +--ro link
. . .
. . .
| | +--ro intra-area-prefix
. . .
. . .
| | +--ro router-information
. . .
. . .
| +--rw virtual-links
| | +--rw virtual-link* [transit-area-id router-id]
| | +--rw transit-area-id -> ../../../../
| | area/area-id
| | +--rw router-id rt-types:router-id
| | +--rw hello-interval? uint16
| | +--rw dead-interval? uint32
| | +--rw retransmit-interval? uint16
| | +--rw transmit-delay? uint16
| | +--rw lls? boolean {lls}?
| | +--rw ttl-security {ttl-security}?
| | | +--rw enable? boolean
| | | +--rw hops? uint8
| | +--rw enable? boolean
| | +--rw authentication
| | | +--rw (auth-type-selection)?
| | | +--:(ospfv2-auth)
| | | | +--rw ospfv2-auth-trailer-rfc?
| | | | | ospfv2-auth-trailer-rfc-version
| | | | | {ospfv2-authentication-trailer}?
| | | | +--rw (ospfv2-auth-specification)?
| | | | +--:(auth-key-chain) {key-chain}?
| | | | | +--rw ospfv2-key-chain?
| | | | | key-chain:key-chain-ref
| | | | +--:(auth-key-explicit)
| | | | +--rw ospfv2-key-id? uint32
| | | | +--rw ospfv2-key? string
| | | | +--rw ospfv2-crypto-algorithm?
| | | | identityref
| | | +--:(ospfv3-auth-ipsec)
| | | | {ospfv3-authentication-ipsec}?
| | | | +--rw sa? string
| | | +--:(ospfv3-auth-trailer)
| | | | {ospfv3-authentication-trailer}?
| | | +--rw (ospfv3-auth-specification)?
| | | +--:(auth-key-chain) {key-chain}?
| | | | +--rw ospfv3-key-chain?
| | | | key-chain:key-chain-ref
| | | +--:(auth-key-explicit)
| | | +--rw ospfv3-sa-id? uint16
| | | +--rw ospfv3-key? string
| | | +--rw ospfv3-crypto-algorithm?
| | | identityref
| | +--ro cost? uint16
| | +--ro state? if-state-type
| | +--ro hello-timer? uint32
| | +--ro wait-timer? uint32
| | +--ro dr-router-id? rt-types:router-id
| | +--ro dr-ip-addr? inet:ip-address
| | +--ro bdr-router-id? rt-types:router-id
| | +--ro bdr-ip-addr? inet:ip-address
| | +--ro statistics
| | | +--ro if-event-count? yang:counter32
| | | +--ro link-scope-lsa-count? yang:gauge32
| | | +--ro link-scope-lsa-cksum-sum?
| | | uint32
| | | +--ro database
| | | +--ro link-scope-lsa-type*
| | | +--ro lsa-type? uint16
| | | +--ro lsa-count? yang:gauge32
| | | +--ro lsa-cksum-sum? int32
| | +--ro neighbors
| | | +--ro neighbor* [neighbor-router-id]
| | | +--ro neighbor-router-id
| | | rt-types:router-id
| | | +--ro address? inet:ip-address
| | | +--ro dr-router-id? rt-types:router-id
| | | +--ro dr-ip-addr? inet:ip-address
| | | +--ro bdr-router-id? rt-types:router-id
| | | +--ro bdr-ip-addr? inet:ip-address
| | | +--ro state? nbr-state-type
| | | +--ro dead-timer? uint32
| | | +--ro statistics
| | | +--ro nbr-event-count?
| | | yang:counter32
| | | +--ro nbr-retrans-qlen?
| | | yang:gauge32
| | +--ro database
| | +--ro link-scope-lsa-type* [lsa-type]
| | +--ro lsa-type uint16
| | +--ro link-scope-lsas
. .
. .
| +--rw sham-links {pe-ce-protocol}?
| | +--rw sham-link* [local-id remote-id]
| | +--rw local-id inet:ip-address
| | +--rw remote-id inet:ip-address
| | +--rw hello-interval? uint16
| | +--rw dead-interval? uint32
| | +--rw retransmit-interval? uint16
| | +--rw transmit-delay? uint16
| | +--rw lls? boolean {lls}?
| | +--rw ttl-security {ttl-security}?
| | | +--rw enable? boolean
| | | +--rw hops? uint8
| | +--rw enable? boolean
| | +--rw authentication
| | | +--rw (auth-type-selection)?
| | | +--:(ospfv2-auth)
| | | | +--rw ospfv2-auth-trailer-rfc?
| | | | | ospfv2-auth-trailer-rfc-version
| | | | | {ospfv2-authentication-trailer}?
| | | | +--rw (ospfv2-auth-specification)?
| | | | +--:(auth-key-chain) {key-chain}?
| | | | | +--rw ospfv2-key-chain?
| | | | | key-chain:key-chain-ref
| | | | +--:(auth-key-explicit)
| | | | +--rw ospfv2-key-id? uint32
| | | | +--rw ospfv2-key? string
| | | | +--rw ospfv2-crypto-algorithm?
| | | | identityref
| | | +--:(ospfv3-auth-ipsec)
| | | | {ospfv3-authentication-ipsec}?
| | | | +--rw sa? string
| | | +--:(ospfv3-auth-trailer)
| | | | {ospfv3-authentication-trailer}?
| | | +--rw (ospfv3-auth-specification)?
| | | +--:(auth-key-chain) {key-chain}?
| | | | +--rw ospfv3-key-chain?
| | | | key-chain:key-chain-ref
| | | +--:(auth-key-explicit)
| | | +--rw ospfv3-sa-id? uint16
| | | +--rw ospfv3-key? string
| | | +--rw ospfv3-crypto-algorithm?
| | | identityref
| | +--rw cost? uint16
| | +--rw mtu-ignore? boolean
| | {mtu-ignore}?
| | +--rw prefix-suppression? boolean
| | {prefix-suppression}?
| | +--rw two-part-metric? boolean
| | {two-part-metric}?
| | +--ro state? if-state-type
| | +--ro hello-timer? uint32
| | +--ro wait-timer? uint32
| | +--ro dr-router-id? rt-types:router-id
| | +--ro dr-ip-addr? inet:ip-address
| | +--ro bdr-router-id? rt-types:router-id
| | +--ro bdr-ip-addr? inet:ip-address
| | +--ro statistics
| | | +--ro if-event-count? yang:counter32
| | | +--ro link-scope-lsa-count? yang:gauge32
| | | +--ro link-scope-lsa-cksum-sum?
| | | uint32
| | | +--ro database
| | | +--ro link-scope-lsa-type*
| | | +--ro lsa-type? uint16
| | | +--ro lsa-count? yang:gauge32
| | | +--ro lsa-cksum-sum? int32
| | +--ro neighbors
| | | +--ro neighbor* [neighbor-router-id]
| | | +--ro neighbor-router-id
| | | rt-types:router-id
| | | +--ro address? inet:ip-address
| | | +--ro dr-router-id? rt-types:router-id
| | | +--ro dr-ip-addr? inet:ip-address
| | | +--ro bdr-router-id? rt-types:router-id
| | | +--ro bdr-ip-addr? inet:ip-address
| | | +--ro state? nbr-state-type
| | | +--ro cost? uint32
| | | +--ro dead-timer? uint32
| | | +--ro statistics
| | | +--ro nbr-event-count?
| | | yang:counter32
| | | +--ro nbr-retrans-qlen?
| | | yang:gauge32
| | +--ro database
| | +--ro link-scope-lsa-type* [lsa-type]
| | +--ro lsa-type uint16
| | +--ro link-scope-lsas
. .
. .
</artwork>
</figure>
</section>
<section title="OSPF Interface Configuration/Operational State">
<t>The interface container contains OSPF interface configuration
and operational state.
The interface operational state includes the statistics, list of
neighbors, and Link-Local Link State Database (LSDB).</t>
<figure align="left">
<artwork align="left">
module: ietf-ospf
augment /rt:routing/rt:control-plane-protocols/
rt:control-plane-protocol:
+--rw ospf
.
.
+--rw areas
| +--rw area* [area-id]
| .
| .
| +--rw interfaces
| +--rw interface* [name]
| +--rw name if:interface-ref
| +--rw interface-type? enumeration
| +--rw passive? boolean
| +--rw demand-circuit? boolean
| {demand-circuit}?
| +--rw priority? uint8
| +--rw multi-areas {multi-area-adj}?
| | +--rw multi-area* [multi-area-id]
| | +--rw multi-area-id area-id-type
| | +--rw cost? uint16
| +--rw static-neighbors
| | +--rw neighbor* [identifier]
| | +--rw identifier inet:ip-address
| | +--rw cost? uint16
| | +--rw poll-interval? uint16
| | +--rw priority? uint8
| +--rw node-flag? boolean
| {node-flag}?
| +--rw bfd {bfd}?
| | +--rw enable? boolean
| +--rw fast-reroute {fast-reroute}?
| | +--rw lfa {lfa}?
| | +--rw candidate-enable? boolean
| | +--rw enable? boolean
| | +--rw remote-lfa {remote-lfa}?
| | +--rw enable? boolean
| +--rw hello-interval? uint16
| +--rw dead-interval? uint32
| +--rw retransmit-interval? uint16
| +--rw transmit-delay? uint16
| +--rw lls? boolean {lls}?
| +--rw ttl-security {ttl-security}?
| | +--rw enable? boolean
| | +--rw hops? uint8
| +--rw enable? boolean
| +--rw authentication
| | +--rw (auth-type-selection)?
| | +--:(ospfv2-auth)
| | | +--rw ospfv2-auth-trailer-rfc?
| | | | ospfv2-auth-trailer-rfc-version
| | | | {ospfv2-authentication-trailer}?
| | | +--rw (ospfv2-auth-specification)?
| | | +--:(auth-key-chain) {key-chain}?
| | | | +--rw ospfv2-key-chain?
| | | | key-chain:key-chain-ref
| | | +--:(auth-key-explicit)
| | | +--rw ospfv2-key-id? uint32
| | | +--rw ospfv2-key? string
| | | +--rw ospfv2-crypto-algorithm?
| | | identityref
| | +--:(ospfv3-auth-ipsec)
| | | {ospfv3-authentication-ipsec}?
| | | +--rw sa? string
| | +--:(ospfv3-auth-trailer)
| | | {ospfv3-authentication-trailer}?
| | +--rw (ospfv3-auth-specification)?
| | +--:(auth-key-chain) {key-chain}?
| | | +--rw ospfv3-key-chain?
| | | key-chain:key-chain-ref
| | +--:(auth-key-explicit)