MPLS Fault Locator

C.

The utility that can be used to locate MPLS faults is MPLS LSP (Label Switched Path) ping, which is option A.

MPLS is a protocol used to efficiently forward data across a service provider network. MPLS works by adding a label to the data packet, which is then used to forward the packet through the network based on the label instead of looking at the packet's IP address.

MPLS LSP ping is a tool used to test and verify the connectivity and health of MPLS Label Switched Paths. LSPs are the paths that the labeled packets follow through the MPLS network. MPLS LSP ping sends a specially crafted MPLS packet along a specified LSP and then receives an echo response from the destination router. This can help identify any problems or faults in the LSP, such as misconfigured or broken routers.

QoS (Quality of Service) is not a tool for locating MPLS faults. Instead, it is a mechanism used to prioritize certain types of traffic over others in order to improve network performance and ensure that critical applications receive sufficient bandwidth.

MPLS traceroute is a tool used to identify the path that a packet takes through an MPLS network. It can help identify any routing or connectivity problems along the path. However, MPLS traceroute does not send special packets like MPLS LSP ping, and so it is not as effective at locating MPLS faults.

EEM (Embedded Event Manager) is a software feature that can be used to automate network tasks and responses based on certain events or triggers. It is not specifically designed for locating MPLS faults, although it can be used as part of a larger troubleshooting or automation solution.