What layer of OSI is Mpls and what plane is LDP?

mpls is on the 2.5 layer- just above the data link but below netwotk layer 

MPLS at layer 2.5 (Between Layer and Layer 3)

LDP at layer 3

MPLS Work betwwen Layer 3 and Layer2 .its Heade lie between IP Header and Ethernet Header .

MPLS operates at layer 2 and LDP is on Layer 3

MPLS is often considers to be a layer 2.5 technology, that is between the Data Link layer and the Network Layer. LDP is a control plane protocol

LDP work on layer 2 and layer 3.

MPLS is layer 2.5

MPLS is layer 2.5  as it can work as switch by using routers so it nasted between the 2 layers.

LDP may work on layer 2 and layer 3.

MPLS is often called layer 2.5 technology as it takes advantage of both planes, while LDP is often reffered as layer3

it is considered in layer 2 and layer 3 because it belongs to the packet-switched network but mpls is often refered as Layer 2.5 because of importance of two layers.

Layer2 Virtual Private Network (L2 VPN) and Layer3 Virtual Private Network (L3 VPN) service discovery based on LDP,