You have been asked to verify the state of an LDP-signaled Layer 2 circuit. Which two commands would you use to verify the state of the connection? (Choose two.)
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A. B. C. D.BD
The correct answers are B. show l2circuit connections and C. show l2circuit statistics.
Explanation:
LDP-signaled Layer 2 circuits are used to provide a point-to-point Ethernet connection between two locations over an MPLS network. In order to verify the state of an LDP-signaled Layer 2 circuit, we need to check the status of the connection and the statistics related to the circuit.
The show l2circuit connections command displays the status of all Layer 2 circuit connections on the router. It provides information on the state of the connection, including whether the connection is up or down, the local and remote interface, and the virtual circuit ID (VC ID) of the connection.
The show l2circuit statistics command displays the statistics related to the Layer 2 circuit connections on the router. This includes information on the number of packets sent and received, errors, and discards.
The other two options, A. show mpls lsp and D. show ldp database, are not directly related to Layer 2 circuit connections. The show mpls lsp command displays the status of MPLS Label Switched Paths (LSPs), which are used to forward traffic across an MPLS network. The show ldp database command displays the LDP database on the router, which contains information about the labels used by the LDP protocol.
In summary, to verify the state of an LDP-signaled Layer 2 circuit, you would use the show l2circuit connections and show l2circuit statistics commands.