[  838.648060][T15845] netdevsim netdevsim455 eni455np1: renamed from eth0
[  838.668385][T15844] netdevsim netdevsim668 eni668np1: renamed from eth1
[  839.422664][T15831] Could not find device with ifindex 2000 in netnsfd 11
[  839.423412][T15831] Could not find netns with fd: 2000
[  839.423995][T15831] Cannot link a netdevsim to itself
[  839.424646][T15831] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).