Set Txqueuelen Under Linux

The txqueuelen parameter in Linux is used to set the size of the transmit queue of a network interface. The default value is usually 1000 packets. (beckerentandallergy.com)

To set the txqueuelen parameter for a network interface in Linux, you can use the ifconfig command or the 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 set the txqueuelen parameter.
3. Enter the following command to set 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 set the txqueuelen parameter.
3. Enter the following command to set 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”.

Keep in mind that changing the txqueuelen parameter may have an impact on the network performance, and it’s recommended to consult the network documentation or a network expert before changing it.