Cisco switch commands

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The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language. Use the write erase command on switches that runs Cisco IOS to ensure that the switches have a default configuration. The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared default configuration.

Cisco switch commands

A large number of commands are available on Cisco routers , as well as many different protocols and features that can be used to establish a network. This section will familiarize you with some of the basic router commands that are commonly used, as well as some typical router management tasks in the included labs. The following commands are used to gather information on a Cisco IOS Software-based router when attempting to learn basic information about a router, or possibly troubleshooting protocol-independent problems: show version show running-config show interfaces show logging show tech-support Let's examine these commands further to see how they can be used to obtain valuable information. You will use the show version command in the simulation environment. This command displays the configuration of the system hardware, the software version, and the names and sources of configuration files and the boot images. This command also displays information about how the system was last started and how long the router has been running since that start. Sample output from the show version command follows:. This software has many different versions of the Cisco IOS Software, each of which supports a variety of features. The version of Cisco IOS Software on the router plays a major role in dictating the capabilities and services of the router. Router Uptime and System Restart The router uptime can be checked to make sure the router has been in continuous operation since it was last restarted. If the uptime is inconsistent with the last known router maintenance, the router may have restarted because of problems with the electrical circuit it is connected to, or because of problems with the router itself. The "System restarted by" line displays a log of how the system was last booted, whether by normal system startup or because of a system error. The following display is an example of a system error that is generally the result of an attempt by the router to access a nonexistent address: System restarted by bus error at PC 0xC4CA, address 0xC0C0 Interface Hardware Inventory The interface hardware inventory should include all interface processors installed in the router. If any interfaces that are installed in the router do not show up in the inventory, there may be hardware problems with the interface processor itself, or the router may be running a version of the Cisco IOS Software that does not support that interface type.

To bring an interface up, use the no form of the shutdown command under the interface configuration mode. The command history feature is automatically enabled. Number of received Multicast packets.

Have you recently tried configuring a Cisco switch, only to realize you've forgotten the commands? You're not alone; we all need a refresher once in a while -- so, here's your refresher course. Whether you are brand new to Cisco networking or a veteran with decades of experience, it's usually smart to memorize these fundamental Cisco switch commands. For this discussion, we'll be using PuTTY! Download the guide and refer back to it at any time! If you're needing to extend the life of your Cisco s while waiting for your Catalyst , , , or Series switches to arrive, PivIT supports these switches on our OneCall third-party maintenance offering. As you know, the switch is the heart of your network.

Cisco switches provide outstanding performance, security, scalability, and cost-efficiency for any network type. They are not ordinary plug-and-play devices that do not need configuration or involvement when resolving issues. However, Cisco switches do require an initial setup, ongoing monitoring, and maintenance. How to configure a Cisco switch? Catalyst series is a well-known family of enterprise-grade network equipment, which varies from wireless controllers, switches, and wireless access points. Catalyst switches use the IOS as their operating system. In addition, all Cisco switches come with LEDs that let you know the current state of your switch. A well-known software that can do this is PuTTy. Unfortunately, PuTTy is only supported by Windows.

Cisco switch commands

Cisco IOS is the backbone software that powers many of Cisco's network devices. For professionals working with these systems, knowing the right commands is crucial. This article provides a Cisco commands cheat sheet, outlining the most common Cisco IOS commands for configuring, securing and troubleshooting Cisco network equipment. It includes the list of Cisco switch commands, a Cisco router commands list and Cisco network commands. Being familiar with the basic Cisco console commands will aid network administrators in managing Cisco devices efficiently and in line with best practices. Cisco IOS has several command modes that fall into further categories such as operational and configuration. Each mode serves a slightly unique purpose.

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Obtain a brief description of the help system in any command mode. This article is being improved by another user right now. Erase the character to the left of the cursor. When an interface is operating and communicating correctly, there is only one possible status output:. Each time the cursor reaches the end of the line, the line is again shifted ten spaces to the left. Previous Best Practice. View or change the password, or erase the configuration. The access port is set to access unconditionally and operates as a non-trunking, single VLAN interface that sends and receives non-encapsulated non-tagged frames. Repeat the key sequence to recall successively older commands. Interface configuration While in global configuration mode, enter the interface command with a specific interface. Changes made by one Telnet user are reflected in all other Telnet sessions.

The documentation set for this product strives to use bias-free language.

You can connect to the active switch through the console port or the Ethernet management port of one or more stack members. View or change the password, or erase the configuration. Catalyst switches allow you to configure several descriptive system parameters to ease in the administration of internetwork equipment. This example shows how to enter the show configuration privileged EXEC command:. Click below to learn more about the switch solutions we can bring to your network, whether it be the hardware itself, maintenance, or the field services you need to get online. Privacy Policy. Continue with Lab: Router Basics. For information about configuring the switch for Telnet access, see the "Setting a Telnet Password for a Terminal Line" section. Go to configure mode using the configure terminal. Click on the Netbit icon to the right to view an animation about buffering.