Network Health Diagnosis

Diagnose the network health status and output the diagnosis result.

**Table 1** Diagnostic items
Item	Time Required	Whether NPU Training or Inference Is Affected	Application Scenario
network	≤ 10 seconds	No	Faults occur on training or inference service inspection, rollout, or network.

Before performing network diagnosis, you need to configure the IP address and subnet mask of the RoCE NIC as the root user on the host and then configure the IP address of the network detection object. Otherwise, the diagnosis may fail.

Table 2 lists only a test-specific parameter. For details about other common parameters, see Common Parameters.

**Table 2** Parameter description
Parameter	Description	Mandatory
[-i, --items]	Specifies the diagnosis check item. network indicates the network health diagnosis.	Yes

ascend-dmi -dg -i network

[***@***]# ascend-dmi -dg -i network
Summary:
    Arch: aarch64
    Mode: ******
    Time: 20250529-19:22:43
 
Hardware:
    network:
        PASS

**Table 3** Fault check items
Command Output	Description
PASS	The network is healthy.
SKIP	The current product or scenario does not support this function.
INFO	Information displayed for the network.
WARN	Alarm generated for the network.
FAIL	The network check fails.

Parent topic: Health Check