1 ccna 3 v3.1 module 5 switches claes larsen, ccai
TRANSCRIPT
1
CCNA 3 v3.1 Module 5 Switches
Claes Larsen, CCAI
222
Objectives
333
LAN Design Goals
444
LAN Design Considerations
• The function and placement of servers
• Collision-detection issues
• Segmentation issues
• Broadcast domain issues
555
Server Placement
666
Collision Domain: Basic Shared Access
777
Ethernet Technology: Segmentation
888
Broadcast Domain
999
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
101010
Gather Requirements and Expectations
111111
Analyze Requirements and Data
121212
Develop LAN Topology
131313
Developing a LAN Topology
141414
Documentation Logical Diagram
151515
Extended Star Topology in a Multi-Building Campus
161616
Cut Sheet
171717
Setting Up VLAN Implementation
181818
Use Routers to Impose Logical Structure
191919
Addressing Maps
202020
Developing a Layer 1 LAN Topology
212121
Cable Characteristics and IEEE 802.3 Values
222222
Star Topology Using CAT 5 UTP
232323
Typical MDF in Star Topology
242424
Multi-Building Campus
252525
Extended Star Topology in a Multi-Building Campus
262626
Extended Star Topology
272727
Documentation Logical Diagram
282828
Cut Sheet
292929
Developing a Layer 2 LAN Topology
303030
Microsegmentation of the Network
313131
Asymmetric Switching
323232
Collision Domain Size with Hubs
333333
Layer 2 Switch Collision Domains
343434
Layer 2 Switch with Hubs
353535
Layer 2 Migrate to Higher Bandwidth
363636
Layer 3 Router Implementation
373737
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.
383838
Layer 3 Router for Segmentation
393939
Logical Addressing Mapped to Physical Network
404040
Addressing Maps
414141
Logical Network Maps and Addressing Maps
424242
Physical Network Maps
434343
Setting Up VLAN Implementation
444444
VLAN Communication
454545
Hierarchical Design Model: Access Layer
464646
Access Layer
474747
Functions of the Access Layer
484848
Features of Access Layer Switches
494949
Access Layer Switches
• Catalyst 1900 series
• Catalyst 2820 series
• Catalyst 2950 series
• Catalyst 4000 series
• Catalyst 5000 series
505050
Distribution Layer
515151
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
525252
Distribution Layer Switches
Cisco Catalyst 2926G
Cisco Catalyst 6000 Family<not pictured>
Cisco Catalyst 5000 Family
535353
Core Layer
The core layer is a high-speed switching backbone. The core layer should be designed to switch packets as fast as possible.
545454
Core Layer Switches
<not pictured>
Catalyst 6500 series
IGX 8400 series
Catalyst 8500 series
Lightstream 1010
555555
Summary