[  456.336969] netdevsim netdevsim275 eni275np1: renamed from eth0
[  456.337515] netdevsim netdevsim759 eni759np1: renamed from eth1
[  456.426266] Could not find device with ifindex 2000 in netnsfd 11
[  456.426359] Could not find netns with fd: 2000
[  456.426403] Cannot link a netdevsim to itself
[  456.426452] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).