Www.ciscopress.com Copyright 2003 CCNA 3 Chapter 6 Switches By Your Name. - презентация

1 Copyright 2003 CCNA 3 Chapter 6 Switches By Your Name

2 Copyright 2003 Objectives LAN design LAN switches

3 Copyright 2003 LAN Design Goals Functionality Scalability Adaptability Manageability

4 Copyright 2003 LAN Design Considerations The function and placement of servers Collision-detection issues Segmentation issues Broadcast domain issues

5 Copyright 2003 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

6 Copyright 2003 Layer 1 Design

7 Copyright 2003 Typical MDF in Star Topologies

8 Copyright 2003 Layer 1 Documentation

9 Copyright 2003 Layer 2 Design

10 Copyright 2003 LAN Topology

11 Copyright 2003 Microsegmentation

12 Copyright 2003 Asymmetric Switching

13 Copyright 2003 Layer 3 Design

14 Copyright 2003 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.

15 Copyright 2003 Physical Network Maps

16 Copyright 2003 VLAN Communication

17 Copyright 2003 LAN Switches

18 Copyright 2003 Access Layer Shared bandwidth Switched bandwidth MAC layer bandwidth Microsegmentation

19 Copyright 2003 Access Layer Switches Catalyst 1900 series Catalyst 2820 series Catalyst 2950 series Catalyst 4000 series Catalyst 5000 series

20 Copyright 2003 Distribution Layer Aggregation of the wiring-closet connections Broadcast/multicast domain definition VLAN routing Any media transitions that need to occur Security

21 Copyright 2003 Distribution Layer Switches Catalyst 2926G Catalyst 5000 family Catalyst 6000 family

22 Copyright 2003 Core Layer The core layer is a high-speed switching backbone. The core layer should be designed to switch packets as fast as possible.

23 Copyright 2003 Core Layer Switches Catalyst 6500 series Catalyst 8500 series IGX 8400 series Lightstream 1010