Consider again the scenario from P19 above. Give the flow tables entries at packet switches s1 and s3, such that any arriving data-grams with a source address of h3 or h4 are routed to the destination hosts specified in the destination address field in the IP data-gram. (Your forwarding table rules should include the cases that an arriving data-gram is destined for a directly attached host or should be forwarded to a neighboring router for eventual host delivery there.)

Data From Problem 19

Consider the SDN Open Flow network shown in Figure 4.30. Suppose that the desired forwarding behavior for data-grams arriving at s2 is as follows:

• Any datgrams arriving on input port 1 from hosts h5 or h6 that are destined to host hi or h2 should be forward over output port 2:
• Any datagrams arriving on input port 2 from hosts hi or h2 that are destined to hosts h or h6 should be forwarded over output port 1;
• Any arriving daagrams on input ports 1 or 2 and destined to hosts h3 or h4 should be delivered to the host specified;
• Hosts h3 and h41 should be able to send datagrams to each other. 

Specify the flow table entries in s2 that implement this forwarding behavior.

Figure 4.30