1 Cisco Switch (Ref. CCNA5 Introduction to Networks 2.1)

Switch LED Indicators You can use the LEDs to monitor switch activity and performance. The locations and numbers of the LEDs vary among switch models. 2

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Port Mode LEDs Mode LEDPort ModeDescription STATPort statusThe port status. This is the default mode. UTILSwitch utilizationThe bandwidth in use by the switch. DUPLXPort duplex modeThe port duplex mode: half duplex or full duplex. SPEEDPort speedThe port operating speed: 10 or 100 Mbps for 10/100 ports and 10, 100, or 1000 Mbps for 10/100/1000 ports. 4

5 Meaning of Port LED STAT OffNo link present. Solid GreenLink present, but no activity. Flashing GreenLink present with traffic activity. Alternating Green-Orange Link fault, error frames. Solid OrangePort is not forwarding.

6 Meaning of Port LED Colors Duplex Off Port is operating in half-duplex mode. GreenPort is operating in full-duplex mode. Speed OffPort is operating at 10 Mbps. GreenPort is operating at 100 Mbps. Flashing green Port is operating at 1000 Mbps.

7 Switch Configuration A new switch will have a preset configuration with factory defaults. Following settings are available to configure for a switch: – IP address (for multi-layer switch) – Interface speed – Duplex operation – MAC address table

8 Console Connection A Console Connection is a connection from your computer to the Console Port of a Cisco switch or router. Cisco routers and switches are managed by using a local console connection or a remote connection to view and make changes to the configuration. Nearly all Cisco devices have a serial console port to which you can connect.

Console Connection 9

10 COM 2 Port COM 1 Port DB9-RJ45 Adaptor Console Cable (Rollover Cable)

11 Cisco IOS Software The system software that provides features and processes to Cisco network hardware, including switches and routers. You need to use Command-Line Interface (CLI) to interact with the IOS software. – PuTTy – HyperTerminal – Tera Term

12 System Configuration Dialog No Initial Configuration in an new device. Always answer “No” Press ‘ Ctrl-C ’ to terminate the setup dialog at any time.

13 IOS Modes Switch> Switch# Switch(config)#

HELP Command

Command Syntax Check

16 SHOW Commands