[  522.091708] netdevsim netdevsim660 eni660np1: renamed from eth1
[  522.188388] netdevsim netdevsim389 eni389np1: renamed from eth0
[  522.434157] Could not find device with ifindex 2000 in netnsfd 11
[  522.434368] Could not find netns with fd: 2000
[  522.434460] Cannot link a netdevsim to itself
[  522.434566] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).