[  474.449232] netdevsim netdevsim451 eni451np1: renamed from eth0
[  474.449910] netdevsim netdevsim629 eni629np1: renamed from eth0
[  474.528317] Could not find device with ifindex 2000 in netnsfd 11
[  474.528397] Could not find netns with fd: 2000
[  474.528442] Cannot link a netdevsim to itself
[  474.528489] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).