Question

List the three steps that dvmrp uses to source based routing

Answer 1

List three steps that a DVMRP router uses to create a source-based tree. Which phase is responsible for creating the part of the tree from the source to the current router? Which phase is responsible for creating a broadcast tree with the router as the root? Which phase is responsible for changing the broadcast tree to a multicast tree?

Step-by-Step Solution:

Step 1 of 5

Distance vector multicast routing protocol creates a shortest path tree for routing a packet.

• Step1: in the first step a part of the shortest tree is created.

• Reverse path forwarding algorithm is used to create this tree.

• Here the packets which traversed using the shortest path from source to destination are considered. The packets which did not take the shortest path are discarded.

• Step2: in the second step a broadcast tree is created.

• Reverse path broadcasting algorithm is used to create the broadcast tree.

• Here a router is defined as a parent router, this router broadcasts a packet to the network

• Step3: in the third step a multicast tree is created.

• Reverse path multicasting algorithm is used to create a multicast tree.