Q1. Calculate point-to-point data bandwidth requirements and performance characteristics. Then draw these point-to-point data flows, naming them as F1, F2, etc.

Q2. Draw the physical layout of MyCo, showing Servers, user terminals, etc. Also, show various groups within a building such as Management, Engineering, Payroll, etc.; then draw the flows from Q1 on this MyCo layout to show how the flows in Q1 map on to the MyCo company physical and organizational layout. Refer to Chapters 4 and 5 in text for how to do it.

Q3.This company got a block of network address 150.75.0.0 from ICANN. Is this a Class A, B, or C address?

Q5. This address block is quite large for them. Given the departments and number of people in each department at all locations (as noted above), develop a variable-length

Q6. For VOIP, first you need to consider the codec to use. Although there are many voice codecs, MyCo wants the safest bet and suggests that you design with the most known and oldest codec G.711 since they are very concerned about the voice quality with VoIP. Calculate the voice payload from G.711 codecs with 20ms. frames along with the RTP, UDP, IP, and Ethernet overhead to measure the bandwidth per call with G.711.

Q7. Now, you need to calculate the bandwidth required for supporting VoIP from each location based on the number of people at each location but considering that not everyone is going to call at the same time. Assume that no more than 25% of people are on the phone at any particular time at any location. That will give you the total bandwidth required from each location based on the number of people at each location and the required bandwidth per VoIP call that you calculated from Q5.

Q8. The second point to consider is that from each location, some calls are internal to that site and some are going to outside locations. Again, as an approximation, MyCo telecom people suggests to use a 50-50 rule (50% internal, 50% going out) for the LOs and 70-30 (70% internal, 30% going out) for the HQ and RC buildings. Given this, calculate bandwidth needed for voice traffic from each location going to other locations. The bandwidth needed for voice calls within each location is not needed because all locations must have broadband connectivity for internal communications.

Q9. Discuss Performance Architecture and IP-QoS mechanisms which could be deployed to meet QoS expectations of the users for the data and voice traffic on this network.

Q10. Discuss Security Architecture and associated mechanisms you may consider for MyCo network.

Q11. Suggest physical technologies, devices, and protocol choices for your network design for the 14 locations and inter-locations (LAN/MAN/WAN). Model your design on OPNET to refine and assess its performance.