[  525.678192] netdevsim netdevsim509 eni509np1: renamed from eth0
[  525.774877] netdevsim netdevsim561 eni561np1: renamed from eth1
[  526.011291] Could not find device with ifindex 2000 in netnsfd 11
[  526.011481] Could not find netns with fd: 2000
[  526.011563] Cannot link a netdevsim to itself
[  526.011656] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).