CE1 and CE2 cannot communicate through the service provider BGP peering is established between PE1 and PE2. IS-IS is the only routing protocol running in the service provider core. What step can be done to troubleshoot the issue?

By | November 23, 2022

Refer to the exhibit. CE1 and CE2 cannot communicate through the service provider BGP peering is established between PE1 and PE2. IS-IS is the only routing protocol running in the service provider core. What step can be done to troubleshoot the issue?

  • A. Switch the IGPs running in the core from IS-IS to OSPF to support a Cisco MPLS TE tunnel from PE1 to PE2.
  • B. Configure BGP between CE and PE routers.
  • C. Confirm that IS-IS is running with metric-style narrow.
  • D. Verify the MPLS LSPs.
Answer: Option C.
Explanation: 

No answer description available for this question.

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