Internet Assigned Numbers Authority
Open Shortest Path First (OSPF) Parameters
Created
2015-11-03
Last Updated
2025-09-16
Available Formats
[IMG]
XML [IMG]
HTML [IMG]
Plain text
Registries Included Below
??OSPF Router Information (RI) TLVs
??OSPF Router Informational Capability Bits
??OSPF Router Functional Capability Bits
??OSPF Tunnel Parameter Sub-TLVs
??OSPF Flex-Algorithm Prefix Metric Bits
??OSPF Flexible Algorithm Definition TLV Sub-TLVs
??OSPF Dynamic Flooding LSA TLVs
??OSPF Link Attributes Sub-TLV Bit Values
OSPF Router Information (RI) TLVs
Reference
[RFC7770]
Available Formats
[IMG]
CSV
Range Registration Procedures Note
1-32767 IETF Review
32768-32777 Experimentation IANA does not assign
32778-65535 Reserved IANA does not assign
Value TLV Name Reference
0 Reserved [RFC7770]
1 Router Informational Capabilities [RFC7770]
2 Router Functional Capabilities [RFC7770]
3 TE-MESH-GROUP TLV (IPv4) [RFC4972]
4 TE-MESH-GROUP TLV (IPv6) [RFC4972]
5 TE Node Capability Descriptor [RFC5073]
6 PCED [RFC5088]
7 OSPF Dynamic Hostname [RFC5642]
8 SR-Algorithm TLV [RFC8665]
9 SID/Label Range TLV [RFC8665]
10 Node Admin Tag TLV [RFC7777]
11 S-BFD Discriminator [RFC7884]
12 Node MSD [RFC8476]
13 Tunnel Encapsulations [RFC9013]
14 SR Local Block TLV [RFC8665]
15 SRMS Preference TLV [RFC8665]
16 Flexible Algorithm Definition (FAD) TLV [RFC9350, Section 5.2]
17 OSPF Area Leader [RFC-ietf-lsr-dynamic-flooding-18]
18 OSPF Dynamic Flooding [RFC-ietf-lsr-dynamic-flooding-18]
19 Unassigned
20 SRv6 Capabilities [RFC9513, Section 2]
21 IP Algorithm [RFC9502, Section 5.2]
22-32767 Unassigned
32768-32777 Experimentation [RFC7770]
32778-65535 Reserved [RFC7770]
OSPF Router Informational Capability Bits
Registration Procedure(s)
IETF Review
Reference
[RFC7770]
Available Formats
[IMG]
CSV
Bit Number Capability Name Reference
0 OSPF graceful restart capable [RFC3623]
1 OSPF graceful restart helper [RFC3623]
2 OSPF Stub Router support [RFC3137]
3 OSPF Traffic Engineering support [RFC3630]
4 OSPF point-to-point over LAN [RFC5309]
5 OSPF Experimental TE [RFC4973]
6 Two-Part Metric support [RFC8042]
7 OSPF Host Router [RFC8770]
8-31 Unassigned
OSPF Router Functional Capability Bits
Registration Procedure(s)
IETF Review
Reference
[RFC7770]
Available Formats
[IMG]
CSV
Bit Number Capability Name Reference
0-31 Unassigned
OSPF Tunnel Parameter Sub-TLVs
Reference
[RFC9013]
Available Formats
[IMG]
CSV
Range Registration Procedures
1-34999 Standards Action
35000-65499 First Come First Served
Value TLV Name Reference
0 Reserved [RFC9013]
1 Encapsulation [RFC9013][RFC9012]
2 Protocol Type [RFC9013][RFC9012]
3 Tunnel Egress Endpoint [RFC9013][RFC Errata 6576]
4 Color [RFC9013]
5 Load-Balancing Block [RFC9013][RFC5640]
6 DS Field [RFC9013][RFC9012]
7 UDP Destination Port [RFC9013][RFC9012]
8-65499 Unassigned
65500-65534 Experimental [RFC9013]
65535 Reserved [RFC9013]
OSPF Flex-Algorithm Prefix Metric Bits
Registration Procedure(s)
IETF Review
Reference
[RFC9350]
Available Formats
[IMG]
CSV
Bit Number Description Reference
0 E bit - External Type [RFC9350, Section 9]
1-7 Unassigned
OSPF Flexible Algorithm Definition TLV Sub-TLVs
Registration Procedure(s)
IETF Review or IESG Approval
Reference
[RFC9350]
Available Formats
[IMG]
CSV
Type Description Reference
0 Reserved [RFC9350]
1 Flexible Algorithm Exclude Admin Group [RFC9350, Section 7.1]
2 Flexible Algorithm Include-Any Admin Group [RFC9350, Section 7.2]
3 Flexible Algorithm Include-All Admin Group [RFC9350, Section 7.3]
4 Flexible Algorithm Definition Flags [RFC9350, Section 7.4]
5 Flexible Algorithm Exclude SRLG [RFC9350, Section 7.5]
6 OSPF Exclude Minimum Bandwidth [RFC9843, Section 3.2.1]
7 OSPF Exclude Maximum Delay [RFC9843, Section 3.2.2]
8 OSPF Reference Bandwidth [RFC9843, Section 4.1.4.1]
9 OSPF Bandwidth Threshold [RFC9843, Section 4.1.4.2]
10 Flexible Algorithm Exclude Reverse Admin Group [RFC-ietf-lsr-igp-flex-algo-reverse-affinity-12, Section 8]
11 Flexible Algorithm Include-Any Reverse Admin Group [RFC-ietf-lsr-igp-flex-algo-reverse-affinity-12, Section 9]
12 Flexible Algorithm Include-All Reverse Admin Group [RFC-ietf-lsr-igp-flex-algo-reverse-affinity-12, Section 10]
13-32767 Unassigned
32768-33023 Reserved for Experimental Use [RFC9350]
33024-65535 Reserved [RFC9350]
OSPF Dynamic Flooding LSA TLVs
Registration Procedure(s)
IETF Review or IESG Approval
Reference
[RFC-ietf-lsr-dynamic-flooding-18]
Available Formats
[IMG]
CSV
Type Description Reference
0 Reserved [RFC-ietf-lsr-dynamic-flooding-18]
1 OSPF Area Router IDs [RFC-ietf-lsr-dynamic-flooding-18]
2 OSPF Flooding Path [RFC-ietf-lsr-dynamic-flooding-18]
3-32767 Unassigned
32768-33023 Reserved for Experimental Use [RFC-ietf-lsr-dynamic-flooding-18]
33024-65535 Reserved [RFC-ietf-lsr-dynamic-flooding-18]
OSPF Link Attributes Sub-TLV Bit Values
Registration Procedure(s)
IETF Review or IESG Approval
Reference
[RFC-ietf-lsr-dynamic-flooding-18]
Note
The "L2BM" column indicates applicability to the L2 Bundle Member
Attributes sub-TLV. The options for the "L2BM" column are:
Y - This bit MAY appear in the L2 Bundle Member Attributes sub-TLV.
N - This bit MUST NOT appear in the L2 Bundle Member Attributes sub-TLV.
Available Formats
[IMG]
CSV
Bit Number Description L2 Bundle Member Attributes (L2BM) Reference
0 Local Edge Enabled for Flooding (LEEF) N [RFC-ietf-lsr-dynamic-flooding-18]
Licensing Terms
Presently we were in a very dark road, and at a point where it dropped suddenly between steep sides we halted in black shadow. A gleam of pale sand, a whisper of deep flowing waters, and a farther glimmer of more sands beyond them challenged our advance. We had come to a "grapevine ferry." The scow was on the other side, the water too shoal for the horses to swim, and the bottom, most likely, quicksand. Out of the blackness of the opposite shore came a soft, high-pitched, quavering, long-drawn, smothered moan of woe, the call of that snivelling little sinner the screech-owl. Ferry murmured to me to answer it and I sent the same faint horror-stricken tremolo back. Again it came to us, from not farther than one might toss his cap, and I followed Ferry down to the water's edge. The grapevine guy swayed at our side, we heard the scow slide from the sands, and in a few moments, moved by two videttes, it touched our shore. Soon we were across, the two videttes riding with us, and beyond a sharp rise, in an old opening made by the swoop of a hurricane, we entered the silent unlighted bivouac of Ferry's scouts. Ferry got down and sat on the earth talking with Quinn, while the sergeants quietly roused the sleepers to horse. Plotinus is driven by this perplexity to reconsider the whole theory of Matter.477 He takes Aristotle¡¯s doctrine as the groundwork of his investigation. According to this, all existence is divided into Matter and Form. What we know of things¡ªin other words, the sum of their differential characteristics¡ªis their Form. Take away this, and the unknowable residuum is their Matter. Again, Matter is the vague indeterminate something out of which particular Forms are developed. The two are related as Possibility to Actuality, as the more generic to the more specific substance through every grade of classification and composition. Thus there are two Matters, the one sensible and the other intelligible. The former constitutes the common substratum of bodies, the other the common element of ideas.478 The general distinction between Matter and Form was originally suggested to Aristotle by Plato¡¯s remarks on the same subject; but he differs325 from his master in two important particulars. Plato, in his Timaeus, seems to identify Matter with space.479 So far, it is a much more positive conception than the ?λη of the Metaphysics. On the other hand, he constantly opposes it to reality as something non-existent; and he at least implies that it is opposed to absolute good as a principle of absolute evil.480 Thus while the Aristotelian world is formed by the development of Power into Actuality, the Platonic world is composed by the union of Being and not-Being, of the Same and the Different, of the One and the Many, of the Limit and the Unlimited, of Good and Evil, in varying proportions with each other. The Lawton woman had heard of an officer's family at Grant, which was in need of a cook, and had gone there. [See larger version] On the 8th of July an extraordinary Privy Council was summoned. All the members, of whatever party, were desired to attend, and many were the speculations as to the object of their meeting. The general notion was that it involved the continuing or the ending of the war. It turned out to be for the announcement of the king's intended marriage. The lady selected was Charlotte, the second sister of the Duke of Mecklenburg-Strelitz. Apart from the narrowness of her education, the young princess had a considerable amount of amiability, good sense, and domestic taste. These she shared with her intended husband, and whilst they made the royal couple always retiring, at the same time they caused them to give, during their lives, a moral air to their court. On the 8th of September Charlotte arrived at St. James's, and that afternoon the marriage took place, the ceremony being performed by the Archbishop of Canterbury. On the 22nd the coronation took place with the greatest splendour. Mother and girls were inconsolable, for each had something that they were sure "Si would like," and would "do him good," but they knew Josiah Klegg, Sr., well enough to understand what was the condition when he had once made up his mind. CHAPTER V. THE YOUNG RECRUITS Si proceeded to deftly construct a litter out of the two guns, with some sticks that he cut with a knife, and bound with pawpaw strips. His voice had sunk very low, almost to sweetness. A soft flurry of pink went over her face, and her eyelids drooped. Then suddenly she braced herself, pulled herself taut, grew combative again, though her voice shook. HoME²Ô¾®Ïè̫ʲôÐÇ×ù
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