Huawei
H12-841_V1.5 · Question #22
In an MPLS VPN network, if "a VPN instance's routing table on the PE device lacks routes advertised by the CE device," which of the following troubleshooting steps should be performed first?
The correct answer is B. Check if the routing protocol between the PE and CE devices is normal (e.g., OSPF neighbor. See the full explanation below for the reasoning.
Intelligent O&M and Troubleshooting in Campus Networks
Question
In an MPLS VPN network, if "a VPN instance's routing table on the PE device lacks routes advertised by the CE device," which of the following troubleshooting steps should be performed first?
Options
- ACheck the BGP VPNv4 neighbor status between the PE and other PE devices.
- BCheck if the routing protocol between the PE and CE devices is normal (e.g., OSPF neighbor
- CCheck if the MPLS LSP is established on the P device.
- DCheck if the CE equipment has any hardware malfunctions.
How the community answered
(53 responses)- A8% (4)
- B75% (40)
- C13% (7)
- D4% (2)
Topics
#MPLS VPN#PE-CE routing#VPN instance#fault isolation
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