Introduction

Supported Products

Atlas A3 training products / Atlas A3 inference products

Atlas A2 training products / Atlas A2 inference products

Overview

RPing is a RDMA-based network ping technology. You can call RPing APIs in the Ascend AI software stack to send ping packets, record Round-Trip Time (RTT), and collect the packet RX and TX status, thus monitoring user's network link status.

The following shows the implementation process of the RPing function.

Figure 1 Implementation process of the RPing function

The client app is the control end on the host. The NPU on the device functions as a client and target.

RPing returns RTT between the client and target and the number of RX and TX packets. The RTT is calculated as follows:

RTT = (T4 – T1) – (T3 – T2)

For the meaning of the timestamp T*, see Figure 1.