[  525.025738] netdevsim netdevsim538 eni538np1: renamed from eth1
[  525.123670] netdevsim netdevsim313 eni313np1: renamed from eth0
[  525.370743] Could not find device with ifindex 2000 in netnsfd 11
[  525.370934] Could not find netns with fd: 2000
[  525.371019] Cannot link a netdevsim to itself
[  525.371120] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).