Download - 1- Switching Basics & Lan Introduction
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE I Chapter 6 1
Switching & LAN Design
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 2
Layer 2 devices
• A layer 2 device is a device that understand MAC, for example:
NIC (Network Interface Card) Bridge : - address learning - forwarding decisions are based on software - bridge is used for LAN segmentation - max. 16 port. Switch: - a multi-port bridge up to 256 port - forwarding decisions are based on hardware ASIC (faster than bridge)
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 3
What is the meaning of switching?
Switching means that the device (router or switch) receive the data on a certain port and forwards it to appropriate port
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 4
Explain the Functions that Enable a Switch to Forward Ethernet Frames in a LAN
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 5
Explain the Functions that Enable a Switch to Forward Ethernet Frames in a LAN
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 6
Hierarchical Network Design
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 7
Hierarchical Network Physical Layout
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 8
Hierarchical Network Design
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 9
Hierarchical Network Design
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 10
Match the Appropriate Cisco Switch to each Layer in the Hierarchical Network Design Model
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 11
Match the Appropriate Cisco Switch to each Layer in the Hierarchical Network Design Model
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 12
Match the Appropriate Cisco Switch to each Layer in the Hierarchical Network Design Model
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 13
Uncontrolled collision & broadcast domains
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 14
Controlled collision & broadcast domains
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 15
Switch boot sequence
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 16
Switch boot sequence
The switch uses the flash memory to store two types of files :
1. The IOS of the switch2. The VLAN database
The switch uses the NVRAM to store two types of files:1. The boot loader2. The configuration file
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 17
The CLI of the switch
the CLI of the switch is like the CLI of the router
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 18
The CLI of the switch
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 19
The CLI of the switch
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 20
The CLI of the switch
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 21
The CLI of the switch
To configure the basic configuration of the switch, like the router basic configuration:
1. Set the hostname2. Set the message of the day3. Set enable password in (clear text or encrypted text)4. Set the interfaces configuration (speed and duplex type)
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 22
The CLI of the switch
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 23
The CLI of the switch
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 24
The CLI of the switch
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 25
The CLI of the switch
Set console password
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 26
The CLI of the switch
Set the telnet password
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 27
The CLI of the switch
To be able to telnet to or from the switch you should set an IP address and the default gateway on the switch as it is a normal PC
To do so:Switch(config)# interface vlan1Switch(config-vlan)# ip address 10.10.10.10 255.255.255.0Switch(config-vlan)# no shutdownSwitch(config-vlan)# exitSwitch(config)# ip default-gateway 10.10.10.1
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 28
The CLI of the switch
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 29