[  456.595671] netdevsim netdevsim433 eni433np1: renamed from eth0
[  456.596135] netdevsim netdevsim630 eni630np1: renamed from eth1
[  456.690847] Could not find device with ifindex 2000 in netnsfd 11
[  456.691027] Could not find netns with fd: 2000
[  456.691142] Cannot link a netdevsim to itself
[  456.691257] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).