[  477.851136] netdevsim netdevsim728 eni728np1: renamed from eth1
[  477.851746] netdevsim netdevsim260 eni260np1: renamed from eth0
[  477.957895] Could not find device with ifindex 2000 in netnsfd 11
[  477.957987] Could not find netns with fd: 2000
[  477.958038] Cannot link a netdevsim to itself
[  477.958098] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).