[  447.749915] netdevsim netdevsim499 eni499np1: renamed from eth0
[  447.846520] netdevsim netdevsim693 eni693np1: renamed from eth1
[  448.098665] Could not find device with ifindex 2000 in netnsfd 11
[  448.098875] Could not find netns with fd: 2000
[  448.098955] Cannot link a netdevsim to itself
[  448.099068] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).