[  538.156405] netdevsim netdevsim483 eni483np1: renamed from eth0
[  538.259060] netdevsim netdevsim757 eni757np1: renamed from eth1
[  538.596939] Could not find device with ifindex 2000 in netnsfd 11
[  538.597130] Could not find netns with fd: 2000
[  538.597219] Cannot link a netdevsim to itself
[  538.597326] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).