[  455.252400] netdevsim netdevsim530 eni530np1: renamed from eth1
[  455.253251] netdevsim netdevsim483 eni483np1: renamed from eth0
[  455.346595] Could not find device with ifindex 2000 in netnsfd 11
[  455.346753] Could not find netns with fd: 2000
[  455.346883] Cannot link a netdevsim to itself
[  455.347002] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).