[  518.688968] netdevsim netdevsim740 eni740np1: renamed from eth1
[  518.786249] netdevsim netdevsim370 eni370np1: renamed from eth0
[  519.014302] Could not find device with ifindex 2000 in netnsfd 11
[  519.014499] Could not find netns with fd: 2000
[  519.014599] Cannot link a netdevsim to itself
[  519.014710] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).