[  523.117057] netdevsim netdevsim546 eni546np1: renamed from eth1
[  523.213618] netdevsim netdevsim499 eni499np1: renamed from eth0
[  523.446058] Could not find device with ifindex 2000 in netnsfd 11
[  523.446216] Could not find netns with fd: 2000
[  523.446300] Cannot link a netdevsim to itself
[  523.446390] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).