[  457.270254] netdevsim netdevsim451 eni451np1: renamed from eth0
[  457.271566] netdevsim netdevsim527 eni527np1: renamed from eth1
[  457.377106] Could not find device with ifindex 2000 in netnsfd 11
[  457.377221] Could not find netns with fd: 2000
[  457.377291] Cannot link a netdevsim to itself
[  457.377343] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).