[  523.648827] netdevsim netdevsim563 eni563np1: renamed from eth1
[  523.746196] netdevsim netdevsim376 eni376np1: renamed from eth0
[  523.973949] Could not find device with ifindex 2000 in netnsfd 11
[  523.974161] Could not find netns with fd: 2000
[  523.974254] Cannot link a netdevsim to itself
[  523.974357] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).