[  523.571056] netdevsim netdevsim617 eni617np1: renamed from eth1
[  523.667758] netdevsim netdevsim502 eni502np1: renamed from eth0
[  523.933338] Could not find device with ifindex 2000 in netnsfd 11
[  523.933553] Could not find netns with fd: 2000
[  523.933646] Cannot link a netdevsim to itself
[  523.933746] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).