What is the life cycle of a Cisco switch? How often are they replaced?

Aug 21 , 2024 313

Cisco switches can be used to connect network devices such as servers and switches for the purpose of data exchange and communication. Another name for switches is called switched hubs, through which data packets can be transferred from one device to another in order to ensure efficient network operation and smooth communication. However, as switches are used for a longer period of time, their lifespan will be affected to a certain extent, such as hardware damage, software upgrades and other occurrences.

What is the lifespan of a Cisco switch? 

The lifespan of a Cisco switch is uncertain, as it can be affected by a number of factors including different models and performance, environmental conditions and usage. Generally, the lifespan of a Cisco switch is between 5-10 years, and in good environments, some switches may last up to 15 years or so. However, in some cases where the usage environment is relatively harsh and the performance is relatively average, the lifespan of the switch is only in the range of 3-5 years. Therefore, when we buy a switch, we need to know exactly the service life and other parameters of the switch so that it can fulfill your usage needs.

What is the warranty period for Cisco switches?

The warranty period for Cisco switches is usually between 1-3 years, and if the warranty period is exceeded, the user needs to bear the corresponding warranty costs. At this point, users can choose to extend the warranty or choose a relatively professional third-party repair team to repair the equipment. The former may have a longer repair cycle, and choosing a third-party repair organization that is professional enough can quickly help you solve the repair problem.

Do Cisco switches need to be upgraded?

Whether a Cisco switch needs to be upgraded depends on a number of factors, including business needs, security, and device performance. NetDirector Communications has compiled a list of situations where upgrades need to be considered:

1. Security vulnerabilities and patches: Cisco's website regularly releases security patches and updates to fix vulnerabilities that may be exploited. If your switch is running an older version, there may be security vulnerabilities, and upgrading the iOS to the appropriate version can enhance the security of the device.

2. Compatibility needs: If you introduce new devices or technologies into your network architecture such as new generation wireless access points, you may need Cisco to run a specific version of iOS to be compatible, and then you need to consider upgrading.

3. New Features and Improvements: Cisco officials continue to release new versions of iOS, only to introduce new features and performance improvements. If your organization needs to use these new features, such as improved network management capabilities or support for more efficient routing protocols, you must upgrade.

4. Performance optimization: Upgrading the iOS may solve performance bottlenecks, such as optimizing the processing speed and data forwarding capability of the switch. Try upgrading the iOS version if you notice an overall decrease in your network or if the switch is experiencing some performance issues.

5. End of vendor support: If the iOS version or device you are currently using has exceeded the vendor's support period, continued use may pose some risk, and you will need to upgrade to a supported version to ensure that you continue to receive technical support and patch updates from Cisco.

6. Hardware limitations: Older hardware cannot support the latest iOS version. If your hardware is too old to meet your current needs, you need to replace the hardware in time or use the iOS version that is within the range of hardware support.

In summary, consider upgrading if your switch is facing security breaches, performance issues, needs new features or if the existing IOS version is about to lose vendor support. Conversely, if the existing system is running stably and meets current needs and has no security risks, consider holding off on upgrading, but still check vendor announcements regularly to stay on top of potential risks.

How are Cisco switches upgraded?

The following are the operating steps for switch iOS upgrade prepared by Linknewnet, and friends who need it are recommended to collect the spare!

Preparation before switch IOS upgrade

1. Install TFTP software on the operating computer.

2. Establish a console session between the computer and the switch.

Connect to the console port of the switch through the computer console cable, then open the SecureCRT software on the computer and use the following settings:

IOS Software Installation and Upgrade Process

Step 1: Select the IOS Software Image

Log in to the Cisco website to select the target version of the upgraded IOS software. The switch needs to have enough disk and memory to store and run IOS.

Step 2: Download the IOS software files to your computer

Log in to the Cisco Software Download Center

https://software.cisco.com/download/home

Step 3: Check the connectivity between your computer and the switch

Connect the computer's network port to the switch's interface, set it to the same network segment, and test the network connectivity.

Step 4: Copy the Cisco IOS Image to the Switch

Run the TFTP software on your computer, specify the IOS file directory, and then use the following command:

Switch# copy tftp://10.1.1.1/***.bin flash:***.bin

Step 5: Examine the Cisco IOS image in the file system

Switch# dir flash.

Step 6: Configure the system boot variables

Switch(config) boot system flash:***.bin

Step 7: Save the configuration and reboot the switch

Switch # write memory

Switch # reload

Step 8: Verify the Cisco IOS Upgrade

After the switch reboot is complete, use the show version command to verify the Cisco IOS software.

If the above steps are not clear, you can refer to the IOS Upgrade Tutorial for Cisco 3560 switches.

Source: How to Upgrade IOS on a Cisco 3560 Switch.