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Ccda desgn v2.0 sg ppt to pdf

  1. 1. www.CareerCert.info Designing for Cisco Internetwork Solutions (DESGN) v2.0 © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0-1The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  2. 2. www.CareerCert.info Course Introduction Designing for Cisco Internetwork Solutions v2.0 © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0-2The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  3. 3. www.CareerCert.info Learner Skills and Knowledge Prerequisite skills and knowledge – Cisco CCNA® certification Recommended training Introduction to Cisco Network Technologies Recommended training Interconnecting Cisco Network Devices Building Cisco Multilayer Switched Networks level knowledge of wireless and QoS topics – Recommended training Building Cisco Multilayer Switched Networks Practical experience with deploying and operating networks based on Cisco network devices and Cisco IOS Software © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0-3The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  4. 4. www.CareerCert.info Course Goal “To enable learners to gather customer internetworking requirements, identify solutions, and design the network infrastructure and services to ensure the basic functionality of the proposed solutions” Designing for Cisco Internetwork Solutions v2.0 © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0-4The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  5. 5. www.CareerCert.info Course Flow Day 1 Day 2 Day 3 Day 4 Day 5 Course Implementing and Introduction Operating the Designing IP Identifying Voice Network A Designing Basic Addressing and Networking Campus and Data M Applying a Center Networks Selecting Routing Considerations Methodology to Protocols Final Case Network Design Study Lunch Final Case Study P Structuring and Evaluating Security Identifying Wireless Designing Remote Modularizing the Solutions for the Networking M Connectivity Network Network Considerations © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0-5The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  6. 6. www.CareerCert.info Cisco Icons and Symbols © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0-6The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  7. 7. www.CareerCert.info Cisco Icons and Symbols (Cont.) © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0-7The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  8. 8. www.CareerCert.info Cisco Certifications © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0-8The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  9. 9. www.CareerCert.info Cisco Career Certifications DESGN—Certification for associate-level recognition in network design CCDE Expert Required Recommended Training Through Exam Cisco Learning Partners 640-863 Designing for Cisco DESGN Internetwork Solutions CCDP Professional Building Cisco Multilayer Switched Networks Associate 640-801 Interconnecting Cisco Network CCDA CCNA Devices Introduction to Cisco Network Technologies http://www.cisco.com/go/certifications © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0-9The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  10. 10. www.CareerCert.info © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0-10The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  11. 11. www.CareerCert.info Applying a Methodology to Network Design Designing for Cisco Internetwork Solutions (DESGN) v2.0 © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-1The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  12. 12. www.CareerCert.info Applying a Methodology to Network Design Introducing the Cisco Service-Oriented Network Architecture © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-1The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  13. 13. www.CareerCert.info Growth of Applications Telephony Business EDI Intelligence Custom Partners Protocol Compression Business-to- Web ASP Service Business Links Field Organizations Business Message Mobile Rules Broker Data Center Transformation Services Branch Offices .Net Business-to- Business Gateway ESB Distribution Standards Load Database Balancing Lookup Security MQ Series Extranet J2EE Remote Event Environments Compliance Capture Legacy EAI Logging Applications RFID Adapters © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-2The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  14. 14. www.CareerCert.info IT Evolution— From Connectivity to Intelligent Systems © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-3The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  15. 15. www.CareerCert.info New Business Requirements © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-4The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  16. 16. www.CareerCert.info Intelligence in the Network © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-5The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  17. 17. www.CareerCert.info Cisco Service-Oriented Network Architecture Framework SONA is an architectural framework. SONA brings several advantages to enterprises: – Outlines how enterprises can evolve toward a more intelligent network – Illustrates how to build integrated systems across a fully converged intelligent infrastructure – Improves flexibility and increases efficiency © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-6The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  18. 18. www.CareerCert.info Cisco SONA Layers © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-7The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  19. 19. www.CareerCert.info Overview of Cisco SONA Offerings © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-8The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  20. 20. www.CareerCert.info Benefits of SONA Description Functionality Supports organizational requirements Scalability Supports growth and expansion of organizational tasks Availability Provides necessary services reliably, anywhere, anytime Provides responsiveness, throughput, and utilization on a Performance per-application basis Manageability Provides control, performance monitoring, and fault detection Provides network services with reasonable operational costs Efficiency and appropriate capital investment © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-9The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  21. 21. www.CareerCert.info Summary Drivers for a new network architecture include these factors: – Growth of applications – IT evolution from connectivity to intelligent systems – Increased business expectations for networks Cisco’s vision of intelligence in the network aligns network and business requirements in three phases: – Phase 1 is integrated transport. – Phase 2 is integrated services. – Phase 3 is integrated applications. Cisco SONA is the enterprise framework for building intelligence in the network: – Layer 1 is the integrated infrastructure layer. – Layer 2 is the interactive services layer. – Layer 3 is the application layer. © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-10The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  22. 22. www.CareerCert.info © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-11The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  23. 23. www.CareerCert.info Identifying Design Requirements Applying a Methodology to Network Design © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-1The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  24. 24. www.CareerCert.info PPDIOO Network Life-Cycle Approach © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-2The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  25. 25. www.CareerCert.info Benefits of the Life-Cycle Approach © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-3The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  26. 26. www.CareerCert.info Design Methodology Under PPDIOO Three steps in the design methodology: 1. Identify the customer requirements. 2. Characterize the existing network and sites. 3. Design the topology and network solutions. © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-4The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  27. 27. www.CareerCert.info Identifying Customer Requirements © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-5The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  28. 28. www.CareerCert.info Identifying Planned Applications Criticality Application Type Application (Critical/Important/ Comments Unimportant) E-mail Groupware Web browsing Video on demand Database Customer support © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-6The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  29. 29. www.CareerCert.info Example: Planned Applications Criticality Application Type Application (critical/important/ Comments unimportant) E-mail Microsoft Outlook Important We need to be able to share Cisco Unified Groupware Important presentations and applications MeetingPlace during remote meetings. Microsoft Internet Web browsing Explorer, Opera, Important Netscape Video on demand IP/TV Critical All data storage will be based Database Oracle Critical on Oracle. Customer Customer support Critical applications © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-7The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  30. 30. www.CareerCert.info Identifying Planned Infrastructure Services Service Comments Security QoS Network management High availability IP telephony Mobility © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-8The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  31. 31. www.CareerCert.info Example: Planned Infrastructure Services Service Comments Deploy security systematically, including firewalls, intrusion detection Security systems (IOSs), and access control lists (ACLs) QoS Give priority to delay-sensitive voice traffic and other important traffic Use centralized management tools where appropriate and point Network management product management as required High availability Eliminate single points of failure and use redundant paths as needed IP telephony Want to migrate company from regular telephony Mobility Need client laptop guest access along with mobility of employee PCs © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-9The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  32. 32. www.CareerCert.info Identifying Organizational Goals Organizational Goal Gathered Data Comments List competitive organizations Point out possibilities to Increase competitiveness and their abilities increase competitiveness Point out cost-reduction Reduce costs List current expenses possibilities Point out possible steps to Improve customer support List current customer support improve customer support Add new customer services List current customer services List future desired services © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-10The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  33. 33. www.CareerCert.info Example: Organizational Goals Gathered Data Organizational Goal Comments (Existing Situation) Better products Increase competitiveness Corporation Y, Corporation Z Reduce costs Single data-entry point Enter data multiple times; Reduce costs Easy-to-learn application time-consuming tasks Simple data exchange Web-based order tracking Order tracking and technical Improve customer support Web-based customer support supported by individuals technical support tools Secure web-based ordering Telephone and fax orders; Add new customer services Secure web-based telephone and fax confirmation confirmations © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-11The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  34. 34. www.CareerCert.info Assessing Organizational Constraints Organizational Constraint Gathered Data Comments Identify the amount of money Budget Amount of money to spend the organization is willing to spend Specify the number of network List available personnel and Personnel engineers who have to attend their expertise the additional training Determine if the organization is List preferred standards, Policy willing to buy equipment from protocols, vendors, applications new vendor Use tools for resource Scheduling Specify time frame assignment, milestones, critical- path analysis © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-12The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  35. 35. www.CareerCert.info Example: Organizational Constraints Gathered Data Organizational Constraint Comments (Existing Situation) Budget can be extended by Budget $650,000 maximum $78,000 Engineers with Cisco CCNA® Plans to hire new engineers in Personnel certificates and Cisco CCNP® the network department; need certificates technical development plan Prefers single vendor and Current equipment—Cisco; Policy standardized protocols prefers to stay with it Plans to introduce new New applications include Scheduling applications in the next nine video conferencing, groupware, months and IP telephony © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-13The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  36. 36. www.CareerCert.info Identifying Technical Goals Technical Goals Importance Comments Responsiveness and throughput Availability Manageability Security Adaptability Scalability Total 100 © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-14The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  37. 37. www.CareerCert.info Example: Technical Goals Technical Goals Importance Comments Important of the central site, less important in branch Performance 20 offices Availability 25 Should be 99.9 percent Manageability 5 Security for critical data transactions is extremely Security 15 important Adaptability 10 Scalability 25 Scalability is critical Total 100 © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-15The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  38. 38. www.CareerCert.info Example: Technical Constraints Technical Constraints Gathered Data Comments Replace existing coaxial cabling. Use twisted-pair to Existing wiring Coaxial cabling desktop and fiber optics for uplinks and in the backbone. Upgrade speeds; consider Bandwidth availability 64-kbps WAN links another service provider with additional services to offer. Make sure new network Application compatibility IPv6 based applications equipment supports IPv6. © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-16The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  39. 39. www.CareerCert.info Summary The PPDIOO approach reflects the life cycle phases of a standard network. The design methodology under PPDIOO includes these processes: – Identifying customer requirements – Characterizing the existing network and sites – Designing the network topology and solutions Key steps in identifying customer requirements include these: – Identifying network applications and services – Defining organizational goals and constraints – Defining technical goals and constraints © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-17The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  40. 40. www.CareerCert.info © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-18The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  41. 41. www.CareerCert.info Characterizing the Existing Network and Sites Applying a Methodology to Network Design © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-1The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  42. 42. www.CareerCert.info Characterizing the Existing Network and Sites Gather documentation and query the organization. Perform a site and network assessment to help detail the network. Consider performing traffic analysis on the existing network and applications. © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-2The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  43. 43. www.CareerCert.info Identifying Major Features of the Network Collect the information about the planned and existing network infrastructure: – Site contact information – Network topology such as network devices, physical and logical links, external connections, encapsulations, bandwidths, IP addressing, routing protocols – Network services such as security, QoS, high availability, IP telephony, storage, and wireless – Network applications such as unified communications and video delivery Collect the information about expected network functionality. Identify network modules based on the given information. © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-3The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  44. 44. www.CareerCert.info Sample Site Contact Questions What is the site location or name? What is the site address? What is the shipping address? Who is the site contact? Is this site owned and maintained by the customer? Is this a staffed site? What are the hours of operation? What are the building or room access procedures? Are there any special security or safety procedures? Are there any union or labor requirements or procedures? What are the locations of the equipment cabinets and racks? © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-4The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  45. 45. www.CareerCert.info Example: Customer Network Diagram © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-5The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  46. 46. www.CareerCert.info Network Assessment Information Sources © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-6The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  47. 47. www.CareerCert.info Example: Network Assessment © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-7The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  48. 48. www.CareerCert.info Network Assessment Tools Manual assessment: – Use monitoring commands on network devices on small networks. – Use scripting tools to collect information on large networks. Use existing management and auditing tools: – CiscoWorks – Third-party tools such as WhatsUp Gold, Castle Rock SNMPc, open source Cacti, Netcordia NetMRI, and NetQoS NetVoyant Use other tools to collect relevant information for the network devices: – Third-party tools such as Network General Sniffer, AirMagnet software and devices, and WildPackets AiroPeek © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-8The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  49. 49. www.CareerCert.info Commands for Manual Information Collection © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-9The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  50. 50. www.CareerCert.info Example: Manual Information Collection—Router CPU Utilization © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-10The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  51. 51. www.CareerCert.info Example: Manual Information Collection—Router Memory Utilization © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-11The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  52. 52. www.CareerCert.info Example: Automatic Information Collection—Cacti Device List © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-12The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  53. 53. www.CareerCert.info Example: Automatic Information Collection—NetMRI Inventory © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-13The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  54. 54. www.CareerCert.info Network Traffic Analysis Use organizational input to identify the applications used in the existing network and their relative importance. Perform a traffic analysis to reveal additional applications used in the network. Use the results and organizational input to define QoS and security-related requirements for discovered applications. © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-14The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  55. 55. www.CareerCert.info Steps in Analyzing Network Traffic © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-15The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  56. 56. www.CareerCert.info Example: Traffic Analysis Application No. 8: Description: Accounting software Protocol: TCP port 5151 Servers: 2 Clients: 50 Scope: Campus Importance: High Average rate: 50 kbps with 10-second bursts to 1 Mbps © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-16The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  57. 57. www.CareerCert.info Network Analysis Tools Cisco IOS Software analysis capabilities: – NBAR – NetFlow Cisco software-based network analyzers: – Cisco CNS NetFlow Collection Engine Third-party tools, such as: – Open source Cacti – Network General Sniffer – WildPackets EtherPeek and AiroPeek – SolarWinds Orion – Wireshark – RMON probes © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-17The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  58. 58. www.CareerCert.info Example: NBAR Printout © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-18The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  59. 59. www.CareerCert.info Example: Cisco IOS NetFlow Printout © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-19The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  60. 60. www.CareerCert.info Example: Cacti Graph © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-20The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  61. 61. www.CareerCert.info Example: Solarwinds Orion © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-21The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  62. 62. www.CareerCert.info Summary Report Characterization of the existing network results in a summary report that is used to: Describe the software features required in the network Describe possible problems in the existing network Identify the actions needed to prepare the network for the implementation of the required features Influence the customer requirements © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-22The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  63. 63. www.CareerCert.info Example: Equipment Summary Report The network uses 895 routers: 655 routers use Cisco IOS Software Release 12.2(10). 240 routers use an older Cisco IOS Software version. © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-23The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  64. 64. www.CareerCert.info Example: Summary Report Problem Statement Requirement: Queuing in the WAN Identified problem: – Existing Cisco IOS Software version does not support new queuing technologies. – 15 out of 19 routers with older Cisco IOS Software are in the WAN. – 12 out of 15 routers do not have enough memory to upgrade to Cisco IOS Software Release 12.3 or later. – 5 out of 15 routers do not have enough flash memory to upgrade to Cisco IOS Software Release 12.3 or later. © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-24The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  65. 65. www.CareerCert.info Example: Summary Report Recommendations Recommended action: – 12 memory upgrades to 64 MB – 5 flash memory upgrades to 16 MB Options: – Replace hardware and software to support queuing. – Find an alternative mechanism for that part of the network. – Find an alternative mechanism and use it instead of queuing. – Evaluate the consequences of not implementing the required feature in that part of the network. © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-25The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  66. 66. www.CareerCert.info Documenting an Existing Network © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-26The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  67. 67. www.CareerCert.info Network Characterization Hour Estimates Small Network Medium Network Large Network Huge Network 1–20 20–200 200–800 >800 Switches/Routers Switches/Routers Switches/Routers Switches/Routers a) Interview management team 4 4 8 8 12 12 16 16 b) Interview network team 4 4 6 6 8 12 24 24 c) Review documentation 4 4 6 6 8 12 16 16 d) Set up network discovery tool 4 4 6 6 8 8 16 16 e) Resolve SNMP access and similar problems 4 4 8 16 16 48 80 160 f) Allow tools to gather data g) Analyze captured data 4 8 16 16 24 24 40 40 h) Prepare high level Layer 3 diagrams 4 4 4 8 8 16 16 32 i) Prepare report stating conclusions 16 16 32 32 48 48 80 80 j) Incrementally prepare network diagrams Estimated manpower in hours 44–48 86–98 132–180 288–384 © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-27The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  68. 68. www.CareerCert.info Summary Characterizing an existing network entails gathering as much information about the network as possible. Organization input, a network audit, and traffic analysis provide the key information that you need. Identifying major features of the network involves gathering network documentation and querying the organization. The auditing process adds detail to the initial network documentation that you created from existing documentation and customer input. You can manually audit a small network, but you typically need automated tools to audit a large network. Traffic analysis verifies the set of applications and protocols used in the network and determines the traffic patterns of the applications. © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-28The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  69. 69. www.CareerCert.info Summary (Cont.) Tools used for traffic analysis range from manual identification of applications using Cisco IOS Software commands in combination with NBAR or NetFlow to those where dedicated software- or hardware-based analyzers capture live packets or SNMP data. The result of the network characterization is a summary report describing the health of the network. © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-29The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  70. 70. www.CareerCert.info © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-30The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  71. 71. www.CareerCert.info Using the Top-Down Approach to Network Design Applying a Methodology to Network Design © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-1The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  72. 72. www.CareerCert.info Top-Down Design Practices Start your design here. Design down the OSI model. © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-2The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  73. 73. www.CareerCert.info Top-Down and Bottom-Up Approach Comparison Top-Down Approach Bottom-Up Approach Incorporates organizational Allows a quick response requirements to a design request Benefits Gives the big picture to Facilitates design based organization and designer on previous experience Implements little or no notion of actual Incorporates organizational organizational requirements Disadvantages requirements May result in inappropriate network design © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-3The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  74. 74. www.CareerCert.info Example: Top-Down Voice Design © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-4The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  75. 75. www.CareerCert.info Creating a Network Decision Table Decide which network layer requires decisions. Gather possible options for a given situation. Create a table that includes possible options and given requirements. Match given requirements with specific properties of given options. Select the option with the most matches as the most appropriate one. © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-5The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  76. 76. www.CareerCert.info Example: Selecting a Routing Protocol Options Required Parameters EIGRP OSPF BGP Network Parameters Size of Network Large Large Very Large Large (Small/Medium/Large/Very Large) Enterprise-Focused Yes Yes No Yes (Yes/No) Use of VLSM Yes Yes Yes Yes (Yes/No) Supports Cisco Routers Yes Yes Yes Yes (Yes/No) Network Support Staff Knowledge Good Fair Poor Good (Good/Fair/Poor) © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-6The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  77. 77. www.CareerCert.info Assessing the Scope of the Network Design Process Scope of Design Comments Entire network All branch office LANs upgraded to support Fast Ethernet technology Redundant equipment and links Campus Addition of wireless client mobility WAN Solutions to overcome bottlenecks © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-7The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  78. 78. www.CareerCert.info Example: Assessing the Scope of the Network Design Process Application—Designing voice transport Network—Designing routing, addressing Physical, data link—Choosing connection type © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-8The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  79. 79. www.CareerCert.info Structured Design Principles © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-9The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  80. 80. www.CareerCert.info Cisco SONA Offerings © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-10The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  81. 81. www.CareerCert.info Network Design Tools © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-11The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  82. 82. www.CareerCert.info Planning an Implementation If a design is composed of multiple complex components: – Implement each component separately; do not implement everything at once. Incremental implementation: – Reduces troubleshooting in case of failure – Reduces time needed to revert to previous state in case of failure © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-12The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  83. 83. www.CareerCert.info Major Implementation Components Each step should contain the following information: Description Reference to design sections Detailed implementation guidelines Detailed roll-back guidelines in case of failure Estimated time for implementation © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-13The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.
  84. 84. www.CareerCert.info Example: Summary Implementation Plan Implementation Date, Time Description Complete Details Phase 3 04/02/2007 Install campus hardware Section 6.2.3 Step 1 Connect switches Section 6.2.3.1 Step 2 Install routers Section 6.2.3.2 Step 3 Complete cabling Section 6.2.3.3 Step 4 Verify data link layer Section 6.2.3.4 Phase 4 04/03/2007 Configure campus hardware Section 6.2.4 Step 1 Configure VLANs Section 6.2.4.1 Step 2 Configure IP addressing Section 6.2.4.2 Step 3 Configure routing Section 6.2.4.3 Step 4 Verify connectivity Section 6.2.4.4 Launch campus updates into Phase 5 04/05/2007 Section 6.2.5 production Complete connections to Step 1 … Section 6.2.5.1 existing network Step 2 Verify connectivity Section 6.2.5.2 © 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—1-14The PDF files and any printed representation for this material are the property of Cisco Systems, Inc.,for the sole use by Cisco employees for personal study. The files or printed representations may not beused in commercial training, and may not be distributed for purposes other than individual self-study.

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