Special-Purpose Multiprotocol Label Switching (MPLS) Label Values
- Created
- 2002-11-08
- Last Updated
- 2021-04-14
- Available Formats
-

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Registries included below
Base Special-Purpose MPLS Label Values
- Registration Procedure(s)
-
Standards Action
- Reference
- [RFC3032][RFC7274][RFC9017]
- Available Formats
-

CSV
Value |
Description |
Reference |
0 |
IPv4 Explicit NULL Label |
[RFC3032] |
1 |
Router Alert Label |
[RFC3032] |
2 |
IPv6 Explicit NULL Label |
[RFC3032] |
3 |
Implicit NULL Label |
[RFC3032] |
4-6 |
Unassigned |
|
7 |
Entropy Label Indicator (ELI) |
[RFC6790] |
8-12 |
Unassigned |
|
13 |
Generic Associated Channel Label |
[RFC5586] |
14 |
OAM Alert Label |
[RFC3429] |
15 |
Extension Label (XL) |
[RFC7274][RFC9017] |
Extended Special-Purpose MPLS Label Values
- Registration Procedure(s)
-
Standards Action
- Reference
- [RFC7274]
- Available Formats
-

CSV
Value |
Description |
Reference |
0-15 |
Reserved. Never to be made available for allocation. |
[RFC7274] |
16 |
Metadata Label Indicator (MLI) |
[RFC8595] |
17 |
Metadata Present Indicator (MPI) |
[RFC8595] |
18-239 |
Unassigned |
|
240-255 |
Reserved for Experimental Use |
[RFC7274] |
256-1048575 |
Reserved. Not to be made available for allocation without a new Standards Track
RFC to define an allocation policy. |
[RFC7274] |