[  478.448345] netdevsim netdevsim267 eni267np1: renamed from eth0
[  478.449041] netdevsim netdevsim534 eni534np1: renamed from eth1
[  478.530211] Could not find device with ifindex 2000 in netnsfd 11
[  478.530300] Could not find netns with fd: 2000
[  478.530345] Cannot link a netdevsim to itself
[  478.530399] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).