[  485.854213] netdevsim netdevsim471 eni471np1: renamed from eth0
[  485.955704] netdevsim netdevsim715 eni715np1: renamed from eth1
[  486.325903] Could not find device with ifindex 2000 in netnsfd 11
[  486.326060] Could not find netns with fd: 2000
[  486.326140] Cannot link a netdevsim to itself
[  486.326253] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).