[  483.612170] netdevsim netdevsim507 eni507np1: renamed from eth0
[  483.714425] netdevsim netdevsim527 eni527np1: renamed from eth1
[  484.075648] Could not find device with ifindex 2000 in netnsfd 11
[  484.075829] Could not find netns with fd: 2000
[  484.075933] Cannot link a netdevsim to itself
[  484.076063] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).