[  455.060329] netdevsim netdevsim271 eni271np1: renamed from eth0
[  455.061825] netdevsim netdevsim611 eni611np1: renamed from eth1
[  455.139429] Could not find device with ifindex 2000 in netnsfd 11
[  455.139526] Could not find netns with fd: 2000
[  455.139573] Cannot link a netdevsim to itself
[  455.139628] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).