[  456.597155] netdevsim netdevsim370 eni370np1: renamed from eth0
[  456.597359] netdevsim netdevsim663 eni663np1: renamed from eth1
[  456.701529] Could not find device with ifindex 2000 in netnsfd 11
[  456.701674] Could not find netns with fd: 2000
[  456.701730] Cannot link a netdevsim to itself
[  456.701794] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).