[  525.859176] netdevsim netdevsim489 eni489np1: renamed from eth0
[  525.955519] netdevsim netdevsim545 eni545np1: renamed from eth1
[  526.199251] Could not find device with ifindex 2000 in netnsfd 11
[  526.199425] Could not find netns with fd: 2000
[  526.199542] Cannot link a netdevsim to itself
[  526.199692] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).