3. a) With diagrams, briefly illustrate the following multicast distance vector routing

protocols. Also, explain how the lower protocols in the list improve the efficiency

of the higher protocols.

i.

Flooding

ii.

RPF

iii.

RPB

iv.

RPM

10

(CO2)

(PO1)Page 3 of 3

b) The Core-Based Tree (CBT) protocol is a group-shared protocol that uses a core as

the root. As a core, a rendezvous point is selected. The core then forms the tree for

the successful transmission. Answer the following questions:

i.

What criteria are important for selecting the rendezvous router?

ii.

Explain how the tree is formed in CBT.

iii.

Explain how a multicast packet is sent through the rendezvous router in CBT.

10

(CO2)

(PO1)

c) Change the following multicast IP addresses to Ethernet multicast addresses.

i.

238.10.24.171

ii.

224.0.10.192