[ 1246.898153][T11143] netdevsim netdevsim750 eni750np1: renamed from eth1
[ 1247.001417][T11144] netdevsim netdevsim420 eni420np1: renamed from eth0
[ 1250.198056][T11136] Could not find device with ifindex 2000 in netnsfd 11
[ 1250.198838][T11136] Could not find netns with fd: 2000
[ 1250.199457][T11136] Cannot link a netdevsim to itself
[ 1250.200182][T11136] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).