Huawei
H12-841_V1.5 · Question #239
In troubleshooting MPLS VPN networks, which of the following tools or commands can help locate the "VPN routing failure" problem? (Multiple choice)
The correct answer is A. Display ip routing-table vpn -instance (to view the VPN instance routing table) B. display mpls lsp (to view the MPLS label forwarding path) C. Ping/ Tracer (test connectivity between CE and PE, and between PE and PE). See the full explanation below for the reasoning.
Intelligent O&M and Troubleshooting in Campus Networks
Question
In troubleshooting MPLS VPN networks, which of the following tools or commands can help locate the "VPN routing failure" problem? (Multiple choice)
Options
- ADisplay ip routing-table vpn -instance (to view the VPN instance routing table)
- Bdisplay mpls lsp (to view the MPLS label forwarding path)
- CPing/ Tracer (test connectivity between CE and PE, and between PE and PE)
- DOnly check device CPU/memory usage, do not check routing and LSP.
- ELack of troubleshooting tools, relying on experience-based judgment
How the community answered
(29 responses)- A79% (23)
- D7% (2)
- E14% (4)
Topics
#VPN routing table#MPLS LSP#ping/traceroute#troubleshooting commands
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