1) Consider the network below: a) Suppose that the network is a datagram network. Show the forwarding table in router A, such that all traffic destined to host H3 is forwarded through interface 3.

b) Suppose that the network is a datagram network. Can you write down a forwarding table in router A, such that all the traffic from H1destined to host H3 is forwarded through interface 3, while all traffic from H2 destined to host H3 is forwarded through interface 4?

c) Suppose this is a virtual circuit network and there is one ongoing call between H1 and H3, and another ongoing call between H2 and H3. Write down a forwarding table in router A, such that all traffic from H1 destined to host H3 is forwarded through interface 3, while all traffic from H2 destined to host H3 is forwarded through interface 4.

d) Assuming the same scenario as (c), write down the forwarding tables in nodes B, C, D.

1 B2 H1 H3 H2