[ 1230.420192][T11146] netdevsim netdevsim509 eni509np1: renamed from eth0
[ 1230.513541][T11144] netdevsim netdevsim587 eni587np1: renamed from eth1
[ 1233.695795][T11138] Could not find device with ifindex 2000 in netnsfd 11
[ 1233.696632][T11138] Could not find netns with fd: 2000
[ 1233.697256][T11138] Cannot link a netdevsim to itself
[ 1233.697956][T11138] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).