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.

Question

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.

Quizplus · Accepted Answer

The Answer of  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.

Refer to the Exhibit