Understanding about tx rx in ROS

Understanding about tx rx in ROS

RX: receive
TX: Transfer

1. In INTTERFACE, when we check the traffic of the wan nic, RX indicates the downstream traffic. TX indicates the upstream traffic.
When you view the traffic of the LAN Nic, RX indicates the upstream traffic. TX indicates the downstream traffic.
Cause,
The traffic received by the wan nic, that is, the traffic from the ISP, is the downstream Rx
With ROS as the center, the traffic received by the LAN Nic, that is, the traffic incoming from the workstation, is the uplink TX.

The same is true for TX.

2. In simple queues, when the destination address is the workstation IP address and the NIC is WAN, TX is the downstream traffic limit.
The reason is that ROS is the center and transmits data to the workstation, that is, the downstream traffic of the workstation.

This article is from "furious life"