This document describes procedures that can be used to deliver MPLS services over Layer 3 Virtual Private Networks (L3VPN). Using these procedures, a VPN customer can signal MPLS Label Switched Paths (LSP) from Customer Edge (CE) router to CE router. Although a Service Provider (SP) network carries the Customer LSP (C-LSP) from one CE router to another, the C-LSP does not interact with the SP network's routing or signaling infrastructure.