Change Txqueuelen Under Linux

To change the txqueuelen parameter of an active network interface in Linux, you can use the ifconfig or ip command.

Using ifconfig:

1. Open a terminal and enter the following command to display the current network interfaces:
   ifconfig -a

2. Identify the interface for which you want to change the txqueuelen parameter.
3. Enter the following command to change the txqueuelen parameter to a new value:
   sudo ifconfig <interface> txqueuelen <new_value>


   Replace <interface> with the name of the network interface, such as “eth0”. Replace <new_value> with the new value you want to set, such as “500”.

Using ip:

1. Open a terminal and enter the following command to display the current network interfaces:
   ip link show

2. Identify the interface for which you want to change the txqueuelen parameter.
3. Enter the following command to change the txqueuelen parameter to a new value:
   sudo ip link set <interface> txqueuelen <new_value>


   Replace <interface> with the name of the network interface, such as “eth0”. Replace <new_value> with the new value you want to set, such as “500”.

Changes made with either of these methods are applied immediately, without the need to restart the network interface or the system.

It’s worth noting that changing the txqueuelen parameter can have an impact on network performance and should be done with caution. If you’re not sure what value to use, it’s best to consult the network documentation or a network expert.