# Configure MTU Size
It makes sense to set the MTU size from 1500 to 9000 for Ethernet connections with a bandwidth of 10Gb/sec or above.
### Procedure 1
* In the Control Panel, select Network and Internet > Network Connections > Change Adapter Settings
* Right-click the icon of the desired network connected, and then click Properties.
* Click the Networking tab.
* Click Configure.
* Click the Advanced Settings tab.
* In Properties, select Jumbo Packet.
* In Value, select 9014 Bytes.
* Click OK.
* Deactivate and activate the network connection
* If you have changed the MTU size for adapters that belong to a LACP channel deactivate and activate all virtual adapters that run on the LACP channel.
* Close Network Connections
* Open Command Prompt as an administrator.
* Use the netsh command to show the index (Idx) and MTU of each network interface.
* Execute the following command:
```
netsh interface ipv4 show interface
```
Output:
```
Idx Met MTU State Name
--- ---------- ---------- ------------ ---------------------------
1 75 4294967295 connected Loopback Pseudo-Interface 1
11 5 1500 disconnected Embedded NIC 2
16 25 1500 connected EmbeddedNIC1_VL77
9 10 9000 connected 50GE_Teaming_Interface - VLAN 1
17 10 9000 connected 50GE_Teaming_Interface - VLAN 2
15 10 9000 connected 50GE_Teaming_Interface - VLAN 3
4 10 9000 connected 50GE_Teaming_Interface - VLAN 4
10 10 9000 connected 50GE_Teaming_Interface - VLAN 5
```
Make sure, that the MTU is shown as 9000 for a desired connections
### Procedure 2
Open Command Prompt as an administrator.
Execute the following command:
```
netsh interface ipv4 show interface
```
Output:
```
Idx Met MTU State Name
--- ---------- ---------- ------------ ---------------------------
1 75 4294967295 connected Loopback Pseudo-Interface 1
11 5 1500 disconnected Embedded NIC 2
16 25 1500 connected EmbeddedNIC1_VL77
9 10 1500 connected 50GE_Teaming_Interface - VLAN 1
17 10 1500 connected 50GE_Teaming_Interface - VLAN 2
15 10 1500 connected 50GE_Teaming_Interface - VLAN 3
4 10 1500 connected 50GE_Teaming_Interface - VLAN 4
10 10 1500 connected 50GE_Teaming_Interface - VLAN 5
```
Verify the index (idx) if the desired network connection
If the MTU is 9000, then no action is necessary. If it is not, execute the following command
```
netsh interface ipv4 set interface 4 mtu=9000
```
Verify the set value
```
netsh interface ipv4 show interface
```
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://jochen-meixner.gitbook.io/notes/os/windows/configure-mtu-size.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.