[  488.074296] netdevsim netdevsim420 eni420np1: renamed from eth0
[  488.170595] netdevsim netdevsim570 eni570np1: renamed from eth1
[  488.409056] Could not find device with ifindex 2000 in netnsfd 11
[  488.409258] Could not find netns with fd: 2000
[  488.409351] Cannot link a netdevsim to itself
[  488.409451] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).