[ 1247.071038][T11275] netdevsim netdevsim420 eni420np1: renamed from eth0
[ 1247.111594][T11276] netdevsim netdevsim611 eni611np1: renamed from eth1
[ 1250.469446][T11269] Could not find device with ifindex 2000 in netnsfd 11
[ 1250.470265][T11269] Could not find netns with fd: 2000
[ 1250.470923][T11269] Cannot link a netdevsim to itself
[ 1250.471703][T11269] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).