[  485.372592] netdevsim netdevsim374 eni374np1: renamed from eth0
[  485.373101] netdevsim netdevsim561 eni561np1: renamed from eth1
[  485.478021] Could not find device with ifindex 2000 in netnsfd 11
[  485.478124] Could not find netns with fd: 2000
[  485.478169] Cannot link a netdevsim to itself
[  485.478220] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).