EXFO FTB-8500 Series for FTB-500 - Manual (Page 491)

Glossary
Ethernet and Fibre Channel Application 477
MPLS Labels
MPLS Labels
The MPLS labels are listed in the following table.
Label Description
0 IPv4 explicit null
1 Router alert
2 IPv6 explicit null
3 Implicit null
14 OAM alert
4 to 13, and 15 Unassigned
16 to 1048575
Label ID