Question 155 of 250 from exam 400-201: Cisco CCIE Service Provider Written Exam

Question 155 of 250 from exam 400-201: Cisco CCIE Service Provider Written Exam


Which three PIM RP modes does IPv6 multicast support? (Choose three.)



A. B. C. D. E. F.


IPv6 multicast supports the following three PIM RP (Rendezvous Point) modes:

B. Static RP: In this mode, a specific router is manually configured to act as the RP for a specific multicast group or range of groups. All routers in the network need to be configured with the IP address of the static RP.

D. Anycast RP: In this mode, multiple RPs are configured with the same IP address, which is advertised as an anycast address. The multicast traffic is forwarded to the nearest RP based on the routing protocol metric.

F. BSR (Bootstrap Router): BSR is a protocol that allows routers to automatically discover the active RP for a multicast group. One router in the network is configured as the BSR candidate, which advertises itself as the BSR. Other routers send their RP candidate addresses to the BSR, and the BSR selects the best RP based on priority and other factors.

A. BGP MDT (Multicast Distribution Tree): BGP MDT is a mode for delivering multicast traffic in MPLS VPN networks. It uses BGP to signal the creation of a multicast distribution tree, and a designated PE (Provider Edge) router acts as the RP.

C. Embedded RP: This mode is not applicable to IPv6 multicast as it was designed for IPv4 networks. In Embedded RP, the RP information is embedded in the multicast group address, and all routers in the network know which RP to use for each group based on the group address.

E. Auto RP: Auto RP is a mode used in IPv4 multicast networks, which is not supported in IPv6. It is a Cisco proprietary protocol that allows for automatic RP discovery and distribution of RP information to other routers in the network.

In conclusion, the three PIM RP modes supported by IPv6 multicast are Static RP, Anycast RP, and BSR.