[  755.562433][T14574] netdevsim netdevsim257 eni257np1: renamed from eth0
[  755.588832][T14576] netdevsim netdevsim562 eni562np1: renamed from eth1
[  756.150408][T14562] Could not find device with ifindex 2000 in netnsfd 11
[  756.151168][T14562] Could not find netns with fd: 2000
[  756.151715][T14562] Cannot link a netdevsim to itself
[  756.152325][T14562] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).