[  687.094291][T14552] netdevsim netdevsim464 eni464np1: renamed from eth0
[  687.100449][T14554] netdevsim netdevsim516 eni516np1: renamed from eth1
[  687.480209][T14540] Could not find device with ifindex 2000 in netnsfd 11
[  687.480557][T14540] Could not find netns with fd: 2000
[  687.480827][T14540] Cannot link a netdevsim to itself
[  687.481188][T14540] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).