[  491.043623] netdevsim netdevsim393 eni393np1: renamed from eth0
[  491.043923] netdevsim netdevsim728 eni728np1: renamed from eth1
[  491.117268] Could not find device with ifindex 2000 in netnsfd 11
[  491.117423] Could not find netns with fd: 2000
[  491.117512] Cannot link a netdevsim to itself
[  491.117582] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).