[  776.872663][T14462] netdevsim netdevsim307 eni307np1: renamed from eth0
[  776.882906][T14464] netdevsim netdevsim661 eni661np1: renamed from eth1
[  777.627827][T14450] Could not find device with ifindex 2000 in netnsfd 11
[  777.628513][T14450] Could not find netns with fd: 2000
[  777.628878][T14450] Cannot link a netdevsim to itself
[  777.629674][T14450] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).