[ 1022.034487][T12734] netdevsim netdevsim449 eni449np1: renamed from eth0
[ 1022.144441][T12684] netdevsim netdevsim539 eni539np1: renamed from eth1
[ 1024.034125][T12729] Could not find device with ifindex 2000 in netnsfd 11
[ 1024.035693][T12729] Could not find netns with fd: 2000
[ 1024.036788][T12729] Cannot link a netdevsim to itself
[ 1024.038066][T12729] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).