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How to set MTU via web interface on Cisco Switch

By: Author Alex Lim

Posted on  - Last updated:

Categories Networking

Configuring Maximum Transmission Unit (MTU) settings directly impacts network performance and efficiency. This article presents an accessible guide to setting MTU on a Cisco CBS350 Switch via its web interface, ensuring optimal network transmission.

Steps to Configure MTU settings via Web Interface on Cisco CBS350 Switch

In this section, we will show you how to set the MTU settings on a Cisco CBS350 switch via the web interface, using the example of a switch with two ports connected to another switch. The steps are as follows:

  1. Connect computer to the switch using Ethernet cable. Open web browser and enter the switch’s IP address in the address bar. Log in using the default username and password, which are cisco/cisco. If you’ve changed these, use your custom login details.
  2. Once logged in, go to the ‘Switching’ tab and click on the ‘Ports’ sub-tab. This displays a list of all switch ports along with status and settings.
  3. Choose the ports you want to adjust the MTU settings for (e.g., GE1/0/1 and GE1/0/2, linked to another switch). Hold Ctrl while clicking to select multiple ports.
  4. Click ‘Edit’ at the top. A window will appear. Go to the ‘Advanced’ tab and scroll down to the ‘MTU’ section. Here, you’ll find ‘System MTU’ and ‘Port MTU’. The System MTU is the default for all ports unless you set a specific value for a port.
  5. To change the System MTU, enter your desired value (between 1500 to 9198 bytes) and click ‘Apply’. Remember, this affects all ports unless you specify differently for a particular port. Ensure compatibility with all network devices.
  6. To adjust the Port MTU, enter the desired value and click ‘Apply’. This change only affects the selected port and overrides the System MTU if different. Confirm compatibility with the connected network device or link.
  7. Repeat steps 3 to 7 for other ports requiring MTU adjustments.
  8. Finally, click ‘Save’ at the top to save the switch configuration changes.

Considerations for MTU Configuration

  • Compatibility: Ensure the chosen MTU size is compatible with your network devices.
  • Testing and Validation: Conduct testing to verify the optimal MTU size for your network without compromising performance.

Read more: How to Choose Optimal MTU Settings for Network

Conclusion

Efficiently configuring MTU settings on a Cisco CBS350 Switch via its web interface is integral to enhancing network performance. By following these outlined steps and considerations, users can optimize their network transmission and achieve seamless data transfer.