[  524.872464] netdevsim netdevsim561 eni561np1: renamed from eth1
[  524.969918] netdevsim netdevsim424 eni424np1: renamed from eth0
[  525.223111] Could not find device with ifindex 2000 in netnsfd 11
[  525.223383] Could not find netns with fd: 2000
[  525.223497] Cannot link a netdevsim to itself
[  525.223627] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).