[  794.760629][T15727] netdevsim netdevsim503 eni503np1: renamed from eth0
[  794.767574][T15729] netdevsim netdevsim561 eni561np1: renamed from eth1
[  795.371200][T15715] Could not find device with ifindex 2000 in netnsfd 11
[  795.371854][T15715] Could not find netns with fd: 2000
[  795.372336][T15715] Cannot link a netdevsim to itself
[  795.372857][T15715] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).