[ 1233.308604][T11133] netdevsim netdevsim312 eni312np1: renamed from eth0
[ 1233.324744][T11134] netdevsim netdevsim621 eni621np1: renamed from eth1
[ 1236.734282][T11125] Could not find device with ifindex 2000 in netnsfd 11
[ 1236.735046][T11125] Could not find netns with fd: 2000
[ 1236.735847][T11125] Cannot link a netdevsim to itself
[ 1236.736607][T11125] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).