| Exam 642-885 | Question id=3334 | Multicast Routing in a Service Provider IP NGN Environment |
The following Cisco IOS-XR configuration command will globally enable which multicast process(es) on the router?
RP/0/RP0/CPU0:router(config)# multicast-routing
| A. |
IGMP only | |
| B. |
PIM only | |
| C. |
IGMP and MLD only | |
| D. |
PIM and IGMP only | |
| E. |
PIM and IGMP and MLD |
Multicast-routing Configuration Submode
When you issue the multicast-routing ipv4 or multicast-routing ipv6 command, all default multicast components (PIM, IGMP, MLD, MFWD, and MRIB) are automatically started, and the CLI prompt changes to "config-mcastipv4" or "config-mcast-ipv6", indicating that you have entered multicast-routing configuration submode.