[  519.545663] netdevsim netdevsim633 eni633np1: renamed from eth1
[  519.642902] netdevsim netdevsim332 eni332np1: renamed from eth0
[  519.851547] Could not find device with ifindex 2000 in netnsfd 11
[  519.851735] Could not find netns with fd: 2000
[  519.851845] Cannot link a netdevsim to itself
[  519.851967] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).