[  767.032930][T14746] netdevsim netdevsim449 eni449np1: renamed from eth0
[  767.052158][T14748] netdevsim netdevsim638 eni638np1: renamed from eth1
[  767.769850][T14734] Could not find device with ifindex 2000 in netnsfd 11
[  767.770496][T14734] Could not find netns with fd: 2000
[  767.770968][T14734] Cannot link a netdevsim to itself
[  767.771883][T14734] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).