[  525.145206] netdevsim netdevsim761 eni761np1: renamed from eth1
[  525.242402] netdevsim netdevsim334 eni334np1: renamed from eth0
[  525.513052] Could not find device with ifindex 2000 in netnsfd 11
[  525.513268] Could not find netns with fd: 2000
[  525.513360] Cannot link a netdevsim to itself
[  525.513466] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).