[ 1247.488791][T11270] netdevsim netdevsim684 eni684np1: renamed from eth1
[ 1247.634303][T11272] netdevsim netdevsim397 eni397np1: renamed from eth0
[ 1250.952179][T11264] Could not find device with ifindex 2000 in netnsfd 11
[ 1250.952943][T11264] Could not find netns with fd: 2000
[ 1250.953779][T11264] Cannot link a netdevsim to itself
[ 1250.954443][T11264] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).