Chapter 6: Designing IP Addressing in the Network (Part03)

References

For additional information, refer to the following resources:

• Comer, Douglas E. and David L. Stevens. Internetworking with TCP/IP Volume 1: Principles, Protocols, and Architecture, Fifth Edition. Englewood Cliffs, New Jersey: Prentice-Hall, 2005.

• Designing Large-Scale IP Internetworks, http://www.cisco.com/univercd/cc/td/doc/cisintwk/idg4/nd2003.htm.

• Subnetting an IP Address Space, http://www.cisco.com/univercd/cc/td/doc/cisintwk/idg4/nd20a.htm.

• DHCP, http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/hiad_c/ch10/index.htm

• DNS Server Support for NS Records, http://www.cisco.com/en/US/products/ps6350/products_configuration_guide_chapter09186a008045597e.html

• Cisco IOS IPv6 Introduction, http://www.cisco.com/en/US/products/ps6553/products_ios_technology_home.html

• Cisco IP Version 6 Solutions, http://www.cisco.com/univercd/cc/td/doc/cisintwk/intsolns/ipv6_sol/index.htm

• Cisco IPv6 Solutions, http://www.cisco.com/en/US/tech/tk872/technologies_white_paper09186a00802219bc.shtml

• IPv6 Address Space, http://www.iana.org/assignments/ipv6-address-space

Case Study: ACMC Hospital IP Addressing Design

This case study is a continuation of the ACMC Hospital case study introduced in Chapter 2, “Applying a Methodology to Network Design.”

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Case Study General Instructions

Use the scenarios, information, and parameters provided at each task of the ongoing case study. If you encounter ambiguities, make reasonable assumptions and proceed. For all tasks, use the initial customer scenario and build on the solutions provided thus far. You can use any and all documentation, books, white papers, and so on.

In each step, you act as a network design consultant. Make creative proposals to accomplish the customer’s business needs. Justify your ideas when they differ from the provided solutions. Use any design strategies you feel are appropriate. The final goal of each case study is a paper solution.

Appendix A, “Answers to Review Questions and Case Studies,” provides a solution for each step based on assumptions made. There is no claim that the provided solution is the best or only solution. Your solution might be more appropriate for the assumptions you made. The provided solution helps you understand the author’s reasoning and allows you to compare and contrast your solution.

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In this case study, you create an IP addressing design for the ACMC hospital network. Table 6-4 is a review of the switch port counts by location, as derived in the case study for Chapter 4, “Designing Basic Campus and Data Center Networks.”

Table 6-4: Port Counts by Location
Open table as spreadsheet

Location	Port Counts	Port Counts with Spares	Comments
Main building 1, per floor	75	150	Six floors
Main building server farm	70	140	Servers will connect with dual network interface cards; this number allows for planned migration of all servers to the server farm
Main building 2, per floor	75	150	Six floors
Children’s Place, per floor	60	120	Three floors
Buildings A–D	10 each	20 each
Buildings E–J	20 each	40 each
Buildings K–L	40 each	80 each

Figure 6-27 reviews the planned campus and WAN infrastructure, as determined in the previous case studies.

Figure 6-27: ACMC Planned Campus and WAN Design

Complete the following steps:

Step 1	Propose a suitable IP addressing plan that takes advantage of good summarization techniques for the ACMC network, including the campus, WAN and backup WAN links, and the remote clinics.
Step 2	Propose possible methods for IP address assignment.