[  485.475116] netdevsim netdevsim583 eni583np1: renamed from eth1
[  485.572699] netdevsim netdevsim451 eni451np1: renamed from eth0
[  485.803393] Could not find device with ifindex 2000 in netnsfd 11
[  485.803714] Could not find netns with fd: 2000
[  485.803787] Cannot link a netdevsim to itself
[  485.803892] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).