MTU (Maximum Transmission Unit) is the maximum amount of data that can be transmitted in a single frame without fragmentation. Mikrotik routers have the ability to change the MTU for all ports to optimize network performance and reduce packet loss.
To change the MTU for all ports on a Mikrotik router, follow these steps:
1. Open the Mikrotik RouterOS web interface by entering its IP address in a web browser.
2. Enter your login credentials to access the router settings.
3. Click on the “Interfaces” tab and then click on “All.”
4. Select the first interface in the interface list and click on the “Edit” button.
5. In the “General” tab under “MTU,” enter the desired MTU value.
6. Click on the “Apply” button to save the changes.
7. Repeat steps 4-6 for each interface in the list.
8. Once all interfaces have been adjusted, save the configuration changes and reboot the router.
Changing the MTU for all ports on a Mikrotik router can help resolve issues with packet loss or poor network performance. The optimal MTU value depends on various factors such as network bandwidth, hardware, and the type of traffic on your network.
It is important to note that changing the MTU can affect network performance negatively if not done correctly. It is recommended to consult with a networking professional before making any changes to your router’s settings.
/interface print where type=ether
/interface print where type=ether Flags: D - dynamic, X - disabled, R - running, S - slave # NAME TYPE ACTUAL-MTU L2MTU MAX-L2MTU MAC-ADDRESS 0 S ether1 ether 1500 1578 10220 6C:3B:6B:55:1E:44 1 ether2 ether 1500 1578 10220 6C:3B:6B:55:1E:44 2 S ether3 ether 1500 1578 10220 6C:3B:6B:1C:1E:6F 3 S ether4 ether 1500 1578 10220 6C:3B:6B:1C:1E:44 4 S ether5 ether 1500 1580 10222 6C:3B:6B:1C:1E:44 5 ether6 ether 1500 1580 10222 6C:3B:6B:1C:1E:99 6 ether7 ether 1500 1580 10222 6C:3B:6B:1C:1E:88 7 ether8 ether 1500 1580 10222 6C:3B:6B:1C:1E:88 8 RS sfp-sfpplus1_CSS_sfp-1 ether 1500 1580 10222 6C:3B:6B:1C:1E:88 9 sfp1 ether 1500 1580 10222 6C:3B:6B:1C:1E:88
Where MAX-L2MTU: 10220
Change all max MTU
/interface ethernet set [find ] l2mtu=10222
