Tag :: EXP

This feature enables users to configure MPLS EXP rewrite behavior on the egress interface based upon the global TC-to-EXP mapping. Starting from software version 4.33.2F, the CLI configuration to enable or disable EXP rewrite on the egress interface introduces a clear distinction in the behavior of MPLS EXP processing during POP and SWAP operations.

This feature allows users to preserve IP TTL and MPLS EXP (also known as TC) value on MPLS routers, as well as add a user-specified TTL/EXP value when pushing new MPLS labels in pipe mode. With the added pipe mode support, packets can traverse the network such that only the LSP ingress and egress nodes are visible to the end users and the MPLS core network can be hidden from the end user.