Internet Assigned Numbers Authority

Multi-threaded Routing Toolkit (MRT)

Created
2011-09-02
Last Updated
2020-01-08
Available Formats

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Registries included below

Type Codes

Expert(s)
Unassigned
Reference
[RFC6396]
Available Formats

CSV
Range Registration Procedures
65-511 IETF Review
512-2047 Specification Required
2048-64511 First Come First Served
Value Description Reference
0 NULL (DEPRECATED) [RFC6396]
1 START (DEPRECATED) [RFC6396]
2 DIE (DEPRECATED) [RFC6396]
3 I_AM_DEAD (DEPRECATED) [RFC6396]
4 PEER_DOWN (DEPRECATED) [RFC6396]
5 BGP (DEPRECATED) [RFC6396]
6 RIP (DEPRECATED) [RFC6396]
7 IDRP (DEPRECATED) [RFC6396]
8 RIPNG (DEPRECATED) [RFC6396]
9 BGP4PLUS (DEPRECATED) [RFC6396]
10 BGP4PLUS_01 (DEPRECATED) [RFC6396]
11 OSPFv2 [RFC6396]
12 TABLE_DUMP [RFC6396]
13 TABLE_DUMP_V2 [RFC6396]
14-15 Reserved
16 BGP4MP [RFC6396]
17 BGP4MP_ET [RFC6396]
18-31 Reserved
32 ISIS [RFC6396]
33 ISIS_ET [RFC6396]
34-47 Reserved [RFC6396]
48 OSPFv3 [RFC6396]
49 OSPFv3_ET [RFC6396]
50-64 Reserved [RFC6396]
65-64511 Unassigned
64512-65534 Reserved for Experimental Use [RFC6396]
65535 Reserved [RFC6396]

Subtype Codes

Registration Procedure(s)
New Subtype Code definitions must reference an existing Type Code to 
which the Subtype belongs. Subtype assignments follow the assignment 
rules for the Type Codes to which they belong.
Reference
[RFC6396]
Note
Subtype Codes have a range from 0 to 65535.

BGP Subtype Codes

Registration Procedure(s)
IETF Review
Reference
[RFC6396]
Available Formats

CSV
Value Name Reference
0 BGP_NULL (DEPRECATED) [RFC6396]
1 BGP_UPDATE (DEPRECATED) [RFC6396]
2 BGP_PREF_UPDATE (DEPRECATED) [RFC6396]
3 BGP_STATE_CHANGE (DEPRECATED) [RFC6396]
4 BGP_SYNC (DEPRECATED) [RFC6396]
5 BGP_OPEN (DEPRECATED) [RFC6396]
6 BGP_NOTIFY (DEPRECATED) [RFC6396]
7 BGP_KEEPALIVE (DEPRECATED) [RFC6396]
8-65534 Unassigned
65535 Reserved [RFC6396]

BGP4PLUS Subtype Codes

Registration Procedure(s)
IETF Review
Reference
[RFC6396]
Available Formats

CSV
Value Name Reference
0 BGP_NULL [RFC6396]
1 BGP_UPDATE [RFC6396]
2 BGP_PREF_UPDATE [RFC6396]
3 BGP_STATE_CHANGE [RFC6396]
4 BGP_SYNC [RFC6396]
5 BGP_OPEN [RFC6396]
6 BGP_NOTIFY [RFC6396]
7 BGP_KEEPALIVE [RFC6396]
8-65534 Unassigned
65535 Reserved [RFC6396]

BGP4PLUS_01 Subtype Codes

Registration Procedure(s)
IETF Review
Reference
[RFC6396]
Available Formats

CSV
Value Name Reference
0 BGP_NULL [RFC6396]
1 BGP_UPDATE [RFC6396]
2 BGP_PREF_UPDATE [RFC6396]
3 BGP_STATE_CHANGE [RFC6396]
4 BGP_SYNC [RFC6396]
5 BGP_OPEN [RFC6396]
6 BGP_NOTIFY [RFC6396]
7 BGP_KEEPALIVE [RFC6396]
8-65534 Unassigned
65535 Reserved [RFC6396]

TABLE_DUMP Subtype Codes

Registration Procedure(s)
IETF Review
Reference
[RFC6396]
Available Formats

CSV
Value Name Reference
0 Reserved [RFC6396]
1 AFI_IPv4 [RFC6396]
2 AFI_IPv6 [RFC6396]
3-65534 Unassigned
65535 Reserved [RFC6396]

TABLE_DUMP_V2 Subtype Codes

Registration Procedure(s)
IETF Review
Reference
[RFC6396]
Available Formats

CSV
Value Name Reference
0 Reserved [RFC6396]
1 PEER_INDEX_TABLE [RFC6396]
2 RIB_IPV4_UNICAST [RFC6396]
3 RIB_IPV4_MULTICAST [RFC6396]
4 RIB_IPV6_UNICAST [RFC6396]
5 RIB_IPV6_MULTICAST [RFC6396]
6 RIB_GENERIC [RFC6396]
7 GEO_PEER_TABLE [RFC6397]
8 RIB_IPV4_UNICAST_ADDPATH [RFC8050]
9 RIB_IPV4_MULTICAST_ADDPATH [RFC8050]
10 RIB_IPV6_UNICAST_ADDPATH [RFC8050]
11 RIB_IPV6_MULTICAST_ADDPATH [RFC8050]
12 RIB_GENERIC_ADDPATH [RFC8050]
13-65534 Unassigned
65535 Reserved [RFC6396]

BGP4MP Subtype Codes

Registration Procedure(s)
IETF Review
Reference
[RFC6396]
Available Formats

CSV
Value Name Reference
0 BGP4MP_STATE_CHANGE [RFC6396]
1 BGP4MP_MESSAGE [RFC6396]
2 BGP4MP_ENTRY (DEPRECATED) [RFC6396]
3 BGP4MP_SNAPSHOT (DEPRECATED) [RFC6396]
4 BGP4MP_MESSAGE_AS4 [RFC6396]
5 BGP4MP_STATE_CHANGE_AS4 [RFC6396]
6 BGP4MP_MESSAGE_LOCAL [RFC6396]
7 BGP4MP_MESSAGE_AS4_LOCAL [RFC6396]
8 BGP4MP_MESSAGE_ADDPATH [RFC8050]
9 BGP4MP_MESSAGE_AS4_ADDPATH [RFC8050]
10 BGP4MP_MESSAGE_LOCAL_ADDPATH [RFC8050]
11 BGP4MP_MESSAGE_AS4_LOCAL_ADDPATH [RFC8050]
12-65534 Unassigned
65535 Reserved [RFC6396]

BGP4MP_ET Subtype Codes

Registration Procedure(s)
IETF Review
Reference
[RFC6396]
Available Formats

CSV
Value Name Reference
0 BGP4MP_STATE_CHANGE [RFC6396]
1 BGP4MP_MESSAGE [RFC6396]
2 BGP4MP_ENTRY [RFC6396]
3 BGP4MP_SNAPSHOT [RFC6396]
4 BGP4MP_MESSAGE_AS4 [RFC6396]
5 BGP4MP_STATE_CHANGE_AS4 [RFC6396]
6 BGP4MP_MESSAGE_LOCAL [RFC6396]
7 BGP4MP_MESSAGE_AS4_LOCAL [RFC6396]
8 BGP4MP_MESSAGE_ADDPATH [RFC8050]
9 BGP4MP_MESSAGE_AS4_ADDPATH [RFC8050]
10 BGP4MP_MESSAGE_LOCAL_ADDPATH [RFC8050]
11 BGP4MP_MESSAGE_AS4_LOCAL_ADDPATH [RFC8050]
12-65534 Unassigned
65535 Reserved [RFC6396]