[ 1270.449859][T12885] netdevsim netdevsim281 eni281np1: renamed from eth0
[ 1270.538816][T12884] netdevsim netdevsim610 eni610np1: renamed from eth1
[ 1273.176612][T12873] Could not find device with ifindex 2000 in netnsfd 11
[ 1273.177800][T12873] Could not find netns with fd: 2000
[ 1273.179048][T12873] Cannot link a netdevsim to itself
[ 1273.180223][T12873] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).