[ 1217.663838][T11143] netdevsim netdevsim271 eni271np1: renamed from eth0
[ 1217.683021][T11142] netdevsim netdevsim642 eni642np1: renamed from eth1
[ 1220.997093][T11135] Could not find device with ifindex 2000 in netnsfd 11
[ 1220.997835][T11135] Could not find netns with fd: 2000
[ 1220.998412][T11135] Cannot link a netdevsim to itself
[ 1220.999360][T11135] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).