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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.

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Port Mode LEDs

Mode LED Port Mode Description

STAT Port status The port status. This is the default mode.

UTIL Switch utilization The bandwidth in use by the switch.

DUPLX Port duplex mode The port duplex mode: half duplex or full duplex.

SPEED Port speed The port operating speed: 10 or 100 Mbps for 10/100 ports and 10, 100, or 1000 Mbps for 10/100/1000 ports.4

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Meaning of Port LED

STAT

Off No link present.

Solid Green Link present, but no activity.

Flashing Green Link present with traffic activity.

Alternating Green-Orange

Link fault, error frames.

Solid Orange Port is not forwarding.

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Meaning of Port LED Colors

Duplex

OffPort is operating in half-duplex mode.

GreenPort is operating in full-duplex mode.

Speed

Off Port is operating at 10 Mbps.

Green Port is operating at 100 Mbps.

Flashing green

Port is operating at 1000 Mbps.

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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

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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

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Console Connection

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COM 2 Port

COM 1 Port

DB9-RJ45 Adaptor

Console Cable (Rollover Cable)

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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

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System Configuration Dialog

No Initial Configuration in an new device. Always answer “No” Press ‘Ctrl-C’ to terminate the setup dialog

at any time.

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IOS Modes

Switch>

Switch#

Switch(config)#

HELP Command

Command Syntax Check

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SHOW Commands