[ 1238.469380][T12776] netdevsim netdevsim396 eni396np1: renamed from eth0
[ 1238.569128][T12775] netdevsim netdevsim656 eni656np1: renamed from eth1
[ 1241.226500][T12763] Could not find device with ifindex 2000 in netnsfd 11
[ 1241.228403][T12763] Could not find netns with fd: 2000
[ 1241.230545][T12763] Cannot link a netdevsim to itself
[ 1241.232433][T12763] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).