[  487.798233] netdevsim netdevsim269 eni269np1: renamed from eth0
[  487.900422] netdevsim netdevsim617 eni617np1: renamed from eth1
[  488.231579] Could not find device with ifindex 2000 in netnsfd 11
[  488.231751] Could not find netns with fd: 2000
[  488.231858] Cannot link a netdevsim to itself
[  488.231970] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).