1 © 2003, Cisco Systems, Inc. All rights reserved. CCNA 3 v3.0 Module 5 Switches

222 © 2003, Cisco Systems, Inc. All rights reserved. Purpose of This PowerPoint This PowerPoint primarily consists of the Target Indicators (TIs) of this module in CCNA version 3.0. It was created to give instructors a PowerPoint to take and modify as their own. This PowerPoint is: NOT a study guide for the module final assessment. NOT a study guide for the CCNA certification exam. Please report any mistakes you find in this PowerPoint by using the Academy Connection Help link.

333 © 2003, Cisco Systems, Inc. All rights reserved. To Locate Instructional Resource Materials on Academy Connection: Go to the Community FTP Center to locate materials created by the instructor community Go to the Tools section Go to the Alpha Preview section Go to the Community link under Resources See the resources available on the Class home page for classes you are offering Search Contact your parent academy!

444 © 2003, Cisco Systems, Inc. All rights reserved. Objectives LAN design LAN switches

555 © 2003, Cisco Systems, Inc. All rights reserved. LAN Design Goals Functionality Scalability Adaptability Manageability

666 © 2003, Cisco Systems, Inc. All rights reserved. LAN Design Considerations The function and placement of servers Collision-detection issues Segmentation issues Broadcast domain issues

777 © 2003, Cisco Systems, Inc. All rights reserved. LAN Design Methodology Gather requirements and expectations Analyze requirements and data Design the Layer 1, 2, and 3 LAN structure, or topology Document the logical and physical network implementation

888 © 2003, Cisco Systems, Inc. All rights reserved. Layer 1 Design

999 © 2003, Cisco Systems, Inc. All rights reserved. Typical MDF in Star Topology

10 © 2003, Cisco Systems, Inc. All rights reserved. Extended Star Topology in a Multi-Building Campus

11 © 2003, Cisco Systems, Inc. All rights reserved. Layer 1 Documentation Logical Diagram

12 © 2003, Cisco Systems, Inc. All rights reserved. Cut Sheet

13 © 2003, Cisco Systems, Inc. All rights reserved. Layer 2 Design: Developing a LAN Topology

14 © 2003, Cisco Systems, Inc. All rights reserved. Microsegmentation of the Network

15 © 2003, Cisco Systems, Inc. All rights reserved. Asymmetric Switching

16 © 2003, Cisco Systems, Inc. All rights reserved. Layer 2 Switch Collision Domains

17 © 2003, Cisco Systems, Inc. All rights reserved. Layer 3 Design

18 © 2003, Cisco Systems, Inc. All rights reserved. Use Routers to Impose Logical Structure Routers provide scalability because they serve as firewalls for broadcasts. They can also provide scalability by dividing networks into subnetworks, or subnets, based on Layer 3 addresses.

19 © 2003, Cisco Systems, Inc. All rights reserved. Physical Network Maps

20 © 2003, Cisco Systems, Inc. All rights reserved. Setting Up VLAN Implementation

21 © 2003, Cisco Systems, Inc. All rights reserved. VLAN Communication

22 © 2003, Cisco Systems, Inc. All rights reserved. Access Layer

23 © 2003, Cisco Systems, Inc. All rights reserved. Access Layer Functions of the Access Layer: Shared Bandwidth Switched Bandwidth MAC Layer Bandwidth Microsegmentation

24 © 2003, Cisco Systems, Inc. All rights reserved. Access Layer Switches Catalyst 1900 series Catalyst 2820 series Catalyst 2950 series Catalyst 4000 series Catalyst 5000 series

25 © 2003, Cisco Systems, Inc. All rights reserved. Distribution Layer

26 © 2003, Cisco Systems, Inc. All rights reserved. Distribution Layer In a switched network, the distribution layer includes several functions such as the following: Aggregation of the wiring-closet connections Broadcast/multicast domain definition VLAN routing Any media transitions that need to occur Security

27 © 2003, Cisco Systems, Inc. All rights reserved. Distribution Layer Switches Cisco Catalyst 2926G Cisco Catalyst 6000 Family Cisco Catalyst 5000 Family

28 © 2003, Cisco Systems, Inc. All rights reserved. Core Layer The core layer is a high-speed switching backbone. The core layer should be designed to switch packets as fast as possible.

29 © 2003, Cisco Systems, Inc. All rights reserved. Core Layer Switches Catalyst 6500 series IGX 8400 series Catalyst 8500 series Lightstream 1010