[  524.914778] netdevsim netdevsim412 eni412np1: renamed from eth0
[  525.015702] netdevsim netdevsim544 eni544np1: renamed from eth1
[  525.340311] Could not find device with ifindex 2000 in netnsfd 11
[  525.340557] Could not find netns with fd: 2000
[  525.340659] Cannot link a netdevsim to itself
[  525.340772] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).