[  487.235161] netdevsim netdevsim743 eni743np1: renamed from eth1
[  487.331578] netdevsim netdevsim312 eni312np1: renamed from eth0
[  487.541271] Could not find device with ifindex 2000 in netnsfd 11
[  487.541515] Could not find netns with fd: 2000
[  487.541599] Cannot link a netdevsim to itself
[  487.541704] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).