An engineer is investigating an issue. Which command should an engineer use on a Cisco IOS XE device to display the contents of the LFIB?

Question

Options

• Ashow mpls forwarding-table
• Bshow mpls ldp neighbors
• Cshow mpls ldp labels
• Dshow mpls ldp bindings

• A
  86% (38)
• B
  2% (1)
• C
  7% (3)
• D
  5% (2)

Explanation

show mpls forwarding-table displays the LFIB (Label Forwarding Information Base), which is the active data-plane table containing incoming labels, outgoing labels, and next-hop interfaces that the router uses to actually switch MPLS packets - exactly what an engineer needs when investigating a forwarding issue.

Why the distractors are wrong:

• B (show mpls ldp neighbors) shows LDP peer adjacency status, not label entries.
• C (show mpls ldp labels) is not a standard IOS XE command.
• D (show mpls ldp bindings) shows the LIB (Label Information Base) - all label bindings learned from LDP peers - which is a control-plane table, not the active forwarding table.

Memory tip: The F in LFIB stands for Forwarding - match it to the forwarding-table keyword. If the question mentions the LIB instead of the LFIB, switch to show mpls ldp bindings.

No community discussion yet for this question.