Validate an LSP in an MPLS Environment

B.

The utility used to validate an LSP (Label Switched Path) in an MPLS (Multiprotocol Label Switching) environment is the MPLS LSP Ping.

MPLS LSP Ping is a utility used to verify and troubleshoot MPLS LSPs in an MPLS network. It is used to check the connectivity and continuity of an LSP by sending an MPLS Echo Request message to the destination endpoint of the LSP. This message includes the labels that the LSP should have received at each hop along the path. If the Echo Request message is successfully received and echoed back, the LSP is considered to be up and functioning correctly.

The MPLS LSP Ping utility is especially useful in troubleshooting network problems, such as LSP failures or routing problems. It can help isolate the problem to a particular router or link along the path of the LSP. The MPLS LSP Ping can also provide information about the labels that are being used along the LSP, as well as the MPLS forwarding table on each router along the path.

In summary, the MPLS LSP Ping is a utility used to validate and troubleshoot MPLS LSPs in an MPLS network, and is a useful tool for network administrators to ensure that their network is functioning correctly.