[ 1028.934617][T12653] netdevsim netdevsim310 eni310np1: renamed from eth0
[ 1029.046670][T12584] netdevsim netdevsim540 eni540np1: renamed from eth1
[ 1030.863186][T12730] Could not find device with ifindex 2000 in netnsfd 11
[ 1030.864154][T12730] Could not find netns with fd: 2000
[ 1030.864832][T12730] Cannot link a netdevsim to itself
[ 1030.865640][T12730] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).