[  489.255396] netdevsim netdevsim701 eni701np1: renamed from eth1
[  489.351940] netdevsim netdevsim507 eni507np1: renamed from eth0
[  489.577633] Could not find device with ifindex 2000 in netnsfd 11
[  489.578072] Could not find netns with fd: 2000
[  489.578198] Cannot link a netdevsim to itself
[  489.578348] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).