[ 1221.564507][T12504] netdevsim netdevsim539 eni539np1: renamed from eth1
[ 1221.584454][T12503] netdevsim netdevsim336 eni336np1: renamed from eth0
[ 1223.978066][T12496] Could not find device with ifindex 2000 in netnsfd 11
[ 1223.979309][T12496] Could not find netns with fd: 2000
[ 1223.980164][T12496] Cannot link a netdevsim to itself
[ 1223.981255][T12496] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).