[  487.705405] netdevsim netdevsim753 eni753np1: renamed from eth1
[  487.800384] netdevsim netdevsim377 eni377np1: renamed from eth0
[  488.057256] Could not find device with ifindex 2000 in netnsfd 11
[  488.057415] Could not find netns with fd: 2000
[  488.057485] Cannot link a netdevsim to itself
[  488.057571] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).