MPLS 8 Labels Push

By default, the maximum number of labels that can be pushed on the packet is three. This feature enhances the maximum number of labels that can be pushed by the egress Packet Forwarding Engine up to eight. The increased label push capability is useful for features such as segment routing traffic-engineering (SR-TE) LSPs and RSVP-TE pop-and-forward LSPs. All existing functionality of applications using MPLS next hops continue to work with the increased label push capability. This includes:

• All OAM utilities, such as lsping, traceroute, and BFD for MPLS LSPs.
• Monitoring utilities, such as lspmon, and LM DM for MPLS LSPs.