What is LDP (Label Distribution Protocol)?

Label Distribution Protocol (LDP) is utilized to distribute labels in non-traffic-engineered applications. Label Distribution Protocol (LDP) is a protocol wherein routers capable of Multiprotocol Label Switching (MPLS) exchange label mapping data. LDP is utilized to fabricate and keep up with LSP databases that are utilized to send traffic through MPLS networks. LDP can work in numerous modes to suit various necessities; but the most widely recognized use is unsolicited mode. The fundamental benefit of LDP over RSVP is the simplicity of setting up a full mesh of tunnels utilizing unsolicited mode.