[ 1242.965991][T12788] netdevsim netdevsim619 eni619np1: renamed from eth1
[ 1243.050615][T12791] netdevsim netdevsim442 eni442np1: renamed from eth0
[ 1245.747270][T12780] Could not find device with ifindex 2000 in netnsfd 11
[ 1245.748732][T12780] Could not find netns with fd: 2000
[ 1245.750212][T12780] Cannot link a netdevsim to itself
[ 1245.751600][T12780] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).