How to program a cisco 3750 switch

If you started the terminal emulation program before you powered on your switch, the PC or terminal displays the bootloader sequence. You need to press Enter to display the setup program prompt. To set up the switch, you need to complete the setup program, which runs automatically after the switch is powered up. You must assign an IP address and other configuration information necessary for the switch to communicate with the local routers and the Internet. This information is also required if you plan to use the Network Assistant to configure and manage the switch.

You will need this information from your network administrator before you complete the setup program:. Note If your switches are stacked and there are multiple console connections to individual switches in the stack, the initial setup dialog appears in the first console where the user presses Enter.

Follow these steps to complete the setup program and to create an initial configuration for the switch:. Step 1 Enter Yes at the following two prompts. Step 2 Enter a host name for the switch, and press Return. On a command switch, the host name is limited to 28 characters; on a member switch to 31 characters. Do not use -n , where n is a number, as the last character in a host name for any switch. Step 3 Enter an enable secret password, and press Return.

The password can be from 1 to 25 alphanumeric characters, can start with a number, is case sensitive, allows spaces, but ignores leading spaces. The secret password is encrypted and the enable password is in plain text. Step 4 Enter an enable password, and press Return. Step 5 Enter a virtual terminal Telnet password, and press Return. The password can be from 1 to 25 alphanumeric characters, is case sensitive, allows spaces, but ignores leading spaces.

To configure SNMP later type no. Step 7 Enter the interface name physical interface or VLAN name of the interface that connects to the management network, and press Return. For this release, always use vlan1 as that interface.

Step 8 Configure the interface by entering the switch IP address and subnet mask and pressing Return. The IP address and subnet masks shown below are examples. Step 9 Enter Y to configure the switch as the cluster command switch.

Enter N to configure it as a member switch or as a standalone switch. You can configure the switch as a command switch later through the CLI, the device manager, or the Network Assistant application. To configure it later, enter no. You have now completed the initial configuration of the switch and the switch displays its initial configuration.

This is an example of output that appears:. Step 10 These choices are displayed:. After you complete the setup program, the switch can run the default configuration that you created. If you want to change this configuration or want to perform other management tasks, use one of these tools:. For configuration information, see the switch software configuration guide or the switch command reference. Skip to content Skip to search Skip to footer. Book Contents Book Contents.

Find Matches in This Book. It offers advanced options for configuring and monitoring multiple devices, including switches, switch clusters, switch stacks, routers, and access points. Network Assistant is free—there is no charge to download, install, or use it. You must be a registered Cisco. Find the Network Assistant installer.

Download the Network Assistant installer, and run it. You can run it directly from the Web if your browser offers this choice. When you run the installer, follow the displayed instructions. In the final panel, click Finish to complete the Network Assistant installation. Refer to the Network Assistant online help and the getting started guide for more information. Connect the other end of the cable to the console port on the switch. Start a terminal-emulation program on the PC.

Configure the PC terminal emulation software for:. Use the CLI to enter commands to configure the switch. See the software configuration guide and the command reference for more information. You can use IE to automate initial configurations and configuration updates on the switch. See the "Accessing Help Online" section for a list of supporting documentation.

Before connecting the Catalyst switches in a stack, keep in mind these planning considerations:. Stacking together switches of the same size makes it easier to cable the switches.

Depending on the configuration of your switch stack, you might need different sized cables. If you don't specify the length of the StackWise cable, the 0. If you require the 1-meter cable or 3-meter cable, you can order it from your Cisco supplier. Note For concepts and procedures to manage switch stacks, refer to the switch software configuration guide.

This switch becomes the stack master and remains the stack master until a master re-election is required. After 20 seconds, power on the remaining switches in the stack. These switches participate in the stack master election. Switches powered on after the second timeframe do not participate in the election. Note Stack master elections occur over a second timeframe on switches running releases earlier than Cisco IOS Release For more information on stack master elections, see the "Managing Switch Stacks" chapter in the switch software configuration guide.

These illustrations show the recommended Catalyst switch stack configurations with redundant StackWise cabling connections for optimized stack bandwidth. In this example, the stack uses the 0. In this example, the stacks use both 0.

In this example, eight switches are stacked side-by-side with redundant connections by using 0. In this example, nine switches are stacked side-by-side with redundant connections by using 0.

To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable. The following guidelines are provided to ensure your safety:. Statement This section covers basic inch rack-mounting and switch port connections.

As an example, all the illustrations show the Catalyst GTS switch. You can install and connect other Catalyst switches as shown in these illustrations. For alternate mounting procedures, such as installing the switch in a inch rack or on a wall, and for additional cabling information, see the Catalyst Switch Hardware Installation Guide on Cisco. When determining where to install the switch, verify that these guidelines are met:. This section includes the basic installation warning statements.

Translations of these warning statements appear in the Regulatory Compliance and Safety Information for the Catalyst Switch guide. Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. To prevent airflow restriction, allow at least 3 inches 7. Statement 17B. Warning Installation of the equipment must comply with local and national electrical codes. Warning This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal use.

Warning Class 1 laser product. Warning Voltages that present a shock hazard may exist on Power over Ethernet PoE circuits if interconnections are made using uninsulated exposed metal contacts, conductors, or terminals.

Avoid using such interconnection methods, unless the exposed metal parts are located within a restricted access location and users and service people who are authorized within the restricted access location are made aware of the hazard.

A restricted access area can be accessed only through the use of a special tool, lock and key or other means of security.

Use four Phillips flat-head screws to attach the long side of the brackets to Catalyst switches in one of three mounting positions. Use the black Phillips machine screw to attach the cable guide to the left or right bracket. Use the four number Phillips machine screws to attach the brackets to the rack.

Remove the dust covers from the StackWise cables and StackWise ports, and store them for future use. Insert one end of the StackWise cable into the StackWise port on the back of the switch. Now click the New button again to add a Layer 3 Switch. Enter the Layer 3 Switch name and specify its type.

Then click the Browse button to add the IOS image. Finish the process by clicking on the Finish button. When we apply the show vlan command on a Layer 2 Switch, we can see that the Switch works successfully. If this article is helpful, send me feedback by commenting!

Thanks in advance, take care of yourself! What is Cisco IOU? Download GNS3 1. Now, run the virtual machine. Press the Enter key on the OK option. Step 13 Click on the OK button to complete the operation. Step 16 On the desktop, create a text document named iourc.

Step 17 Copy the iourc. Step 25 After adding the iourc file, click the Apply button to save the settings. Step 27 In the Server window that opens, click on the Next button.