[  474.087079] netdevsim netdevsim555 eni555np1: renamed from eth1
[  474.087296] netdevsim netdevsim499 eni499np1: renamed from eth0
[  474.169179] Could not find device with ifindex 2000 in netnsfd 11
[  474.169320] Could not find netns with fd: 2000
[  474.169423] Cannot link a netdevsim to itself
[  474.169534] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).