[ 1021.471793][T12580] netdevsim netdevsim343 eni343np1: renamed from eth0
[ 1021.563449][T12577] netdevsim netdevsim541 eni541np1: renamed from eth1
[ 1023.320125][T12572] Could not find device with ifindex 2000 in netnsfd 11
[ 1023.321749][T12572] Could not find netns with fd: 2000
[ 1023.322849][T12572] Cannot link a netdevsim to itself
[ 1023.324146][T12572] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).