[  809.722883][T14595] netdevsim netdevsim421 eni421np1: renamed from eth0
[  809.738535][T14597] netdevsim netdevsim584 eni584np1: renamed from eth1
[  810.384782][T14583] Could not find device with ifindex 2000 in netnsfd 11
[  810.385637][T14583] Could not find netns with fd: 2000
[  810.386049][T14583] Cannot link a netdevsim to itself
[  810.386490][T14583] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).