Designing Cisco Network Service Architectures - Free Books

More documents

Recommendations

Info

Case Study 1: MegaCorp Campus DesignThis case study enables you to practice the skills and knowledge learned in the “ReviewingCisco Network Service Architectures” and “Enterprise Campus Network Design” modules.This Case Study is based on a fictional company, MegaCorp. MegaCorp is a rapidly-growingand leading knowledge worker-based company with many large offices. They operate in theinsurance, financial, marketing, services, and/or government areas of business.You represent a Cisco Premier Partner and have been called in by the CIO to review theMegaCorp design. The design is focused on their campus network.Activity ObjectiveIn this activity, you will create a high level design for the campus portions of the MegaCorpnetwork.After completing this activity, you will be able to meet these objectives:• Document and explain the real customer requirements for this scenario.• Complete and present an optimal high-level design, including diagram, physical and logicaltopology descriptions, recommended switch models and alternatives, other significantdetails, notes on how your design will support IP Telephony, and notes on what your Powerover Ethernet (PoE) recommendations are. Describe and defend the pros and cons for youroptimal design, and how it improves on the existing MegaCorp design.• Describe any other technical design factors the detailed design should incorporate.• Present a high-level approach for how to smoothly migrate from the old to the new networkdesign.• Describe how to mitigate risks in the present MegaCorp design using Cisco switches.• Complete and present a design using Metro Ethernet components as provided in this CaseStudy to connect to remote office buildings.Visual ObjectiveThere is no visual objective for this case study.Required ResourcesThese are the resources and equipment required to complete this activity:• Case Study guidelines, presented in the Course Introduction• MegaCorp Campus Case Study Scenario, presented here in the Lab Guide• A workgroup consisting of two to four students• Blank sheets of paper and a pencil2 Designing Cisco Network Service Architectures (ARCH) v2.0 © 2007 Cisco Systems, Inc.
MegaCorp Campus Case Study ScenarioMegaCorp has a large campus network supporting 10,000 users. The campus consists of 8equally-sized buildings. Each building has 5 floors of approximately 30,000 square feet perfloor with 2 wiring closets (A and B) per floor.The present campus network uses a design recommended by their present switch vendor, whois no longer in business. The design uses stackable switches in a daisy-chain in each closet. Theend switches in each daisy chain connect to a pair of building switches. Spanning tree isdisabled in the closets – the switches detect link state loss and only activate one of the twouplinks at a time. Access ports are 10 Mbps and uplinks 100 Mbps in many cases.The two building switches are connected with a trunk to each other. Each building switchconnects back to one of the two core switches. The core switches have a link between them andoperate at Layer 2 only. All the uplinks and the connecting link are in one VLAN. The buildingswitches route the building subnets into the one core VLAN, which every building switch isconnected to.The present design uses one VLAN per department. Real-estate “wars” have led to departmentsbeing spread over different parts of different floors in each building. Shuffling ports to differentVLANs to support personnel moves keeps several recent technical institute grads busy.MegaCorp thinks their current network is very stable. They only have an outage every month ortwo, and staff can usually fix them within an hour by turning off one of the two buildingswitches. In the evening, they power it up, and disconnect switches until the STP problem isfound. The staff doesn’t mind the overtime pay.© 2007Cisco Systems, Inc. Lab Guide 3
Page 1 and 2: ARCHDesigning Cisco NetworkService
Page 3 and 4: Table of ContentsLab Guide 1Overvie
Page 5: ARCHLab GuideOverviewThis guide pre
Page 10: MegaCorp Campus Design TasksComplet
Page 13 and 14: Case Study 2: CP Hotels Addressing
Page 15 and 16: The following diagram illustrates t
Page 17 and 18: Note128 x 256 Kbps is approximately
Page 19 and 20: The routing design uses external Bo
Page 21 and 22: Addressing at CP HotelsHQ buildings
Page 23 and 24: CP Hotels Design TasksComplete thes
Page 25 and 26: Case Study 3: CP Hotels Network Ini
Page 27 and 28: Series switches use HSRP and EIGRP
Page 29 and 30: Step 3 (E-Commerce Redesign Stateme
Page 31 and 32: Case Study 4: CP Hotels Security an
Page 33 and 34: The following diagram indicates the
Page 35 and 36: The data centers will be connected
Page 37 and 38: Step 2 Review the CP Hotels design
Page 39 and 40: Case Study 5: DS Medical Research I
Page 41 and 42: DS-MRI Design TasksComplete these s
Page 43 and 44: Activity VerificationYour group has
Page 45 and 46: Answer KeyThe recommended solutions
Page 47 and 48: uplinks, since the speeds on the up
Page 49 and 50: Case Study 2 Answer Key: CP Hotels
Page 51 and 52: Another option uses 3 bits for desi
Page 53 and 54: Case Study 3 Answers: CP Hotels Net
Page 55 and 56: Step 3 E-Commerce Refresh• For th
Page 57 and 58:
Case Study 4 Answer Key: CP Hotels
Page 59 and 60:
Step 2 CP Hotels Security• The to
Page 61 and 62:
Case Study 5 Answer Key: DS Medical
Page 63 and 64:
Step 5 High Level Storage Design•
Page 65 and 66:
• DS-MRI would also need to ident
show all

Designing Cisco Network Service Architectures - Free Books

Create successful ePaper yourself

Delete template?

Save as template?