[ 1251.980502][T12889] netdevsim netdevsim633 eni633np1: renamed from eth1
[ 1252.036731][T12890] netdevsim netdevsim481 eni481np1: renamed from eth0
[ 1254.879599][T12878] Could not find device with ifindex 2000 in netnsfd 11
[ 1254.880777][T12878] Could not find netns with fd: 2000
[ 1254.881754][T12878] Cannot link a netdevsim to itself
[ 1254.882813][T12878] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).