[  489.417541] netdevsim netdevsim751 eni751np1: renamed from eth1
[  489.513655] netdevsim netdevsim447 eni447np1: renamed from eth0
[  489.757634] Could not find device with ifindex 2000 in netnsfd 11
[  489.757959] Could not find netns with fd: 2000
[  489.758081] Cannot link a netdevsim to itself
[  489.758220] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).