I found that there was a network jam on two Jetson Xavier NX devices directly connected; This is the result of my two-way test using iperf tool:
$ jetson_release - NVIDIA Jetson Xavier NX (Developer Kit Version) * Jetpack 4.6.1 [L4T 32.7.1] * NV Power Mode: MODE_20W_6CORE - Type: 8 * jetson_stats.service: active - Libraries: * CUDA: 10.2.300 * cuDNN: 22.214.171.124 * TensorRT: 126.96.36.199 * Visionworks: 188.8.131.521 * OpenCV: 4.1.1 compiled CUDA: NO * VPI: ii libnvvpi1 1.2.3 arm64 NVIDIA Vision Programming Interface library * Vulkan: 1.2.70 $ sudo ethtool eth0 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supported pause frame use: Symmetric Receive-only Supports auto-negotiation: Yes Supported FEC modes: Not reported Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised pause frame use: Symmetric Receive-only Advertised auto-negotiation: Yes Advertised FEC modes: Not reported Link partner advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Link partner advertised pause frame use: Symmetric Receive-only Link partner advertised auto-negotiation: Yes Link partner advertised FEC modes: Not reported Speed: 1000Mb/s Duplex: Full Port: MII PHYAD: 1 Transceiver: internal Auto-negotiation: on Link detected: yes
one Jetson Xavier NX device(192.168.1.3):
iperf3 -s iperf3 -c 192.168.1.101 -p 5201 -t 100
another Jetson Xavier NX device(192.168.1.101):
iperf3 -s iperf3 -c 192.168.1.3 -p 5201 -n 445440000000
But no problem was found through the net switch connection.
Is it a well-known issue?