[  509.538673] netdevsim netdevsim466 eni466np1: renamed from eth0
[  509.635222] netdevsim netdevsim674 eni674np1: renamed from eth1
[  509.818118] Could not find device with ifindex 2000 in netnsfd 11
[  509.818282] Could not find netns with fd: 2000
[  509.818354] Cannot link a netdevsim to itself
[  509.818440] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).