[  492.903752] netdevsim netdevsim499 eni499np1: renamed from eth0
[  493.005135] netdevsim netdevsim562 eni562np1: renamed from eth1
[  493.367470] Could not find device with ifindex 2000 in netnsfd 11
[  493.367615] Could not find netns with fd: 2000
[  493.367696] Cannot link a netdevsim to itself
[  493.367791] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).