[ 1188.408771][T12785] netdevsim netdevsim637 eni637np1: renamed from eth1
[ 1188.503643][T12784] netdevsim netdevsim403 eni403np1: renamed from eth0
[ 1191.231880][T12776] Could not find device with ifindex 2000 in netnsfd 11
[ 1191.233230][T12776] Could not find netns with fd: 2000
[ 1191.234146][T12776] Cannot link a netdevsim to itself
[ 1191.235294][T12776] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).