[ 1257.884804][T12784] netdevsim netdevsim535 eni535np1: renamed from eth1
[ 1258.007556][T12787] netdevsim netdevsim338 eni338np1: renamed from eth0
[ 1260.653620][T12775] Could not find device with ifindex 2000 in netnsfd 11
[ 1260.669866][T12775] Could not find netns with fd: 2000
[ 1260.672548][T12775] Cannot link a netdevsim to itself
[ 1260.674604][T12775] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).