[ 1253.594817][T12757] netdevsim netdevsim504 eni504np1: renamed from eth0
[ 1253.704597][T12756] netdevsim netdevsim686 eni686np1: renamed from eth1
[ 1256.384950][T12744] Could not find device with ifindex 2000 in netnsfd 11
[ 1256.387474][T12744] Could not find netns with fd: 2000
[ 1256.388381][T12744] Cannot link a netdevsim to itself
[ 1256.389533][T12744] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).