| Exam 642-887 | Question id=3214 | MPLS/LDP in a Service Provider IP NGN Environment |
When troubleshooting LDP operations on the Cisco IOS and IOS XE routers, what is one of the first things that should be verified?
| A. |
if running OSPF as the IGP, ensure that OSPFv3 has been enabled | |
| B. |
check if the ip cef command has been enabled | |
| C. |
verify in the running configurations that all of the required LDP interfaces are defined under the mpls ldp command configuration mode | |
| D. |
verify if there are any access lists that are denying TCP and UDP port 464 packets |