[ 1294.351926][T12845] netdevsim netdevsim643 eni643np1: renamed from eth1
[ 1294.404222][T12846] netdevsim netdevsim291 eni291np1: renamed from eth0
[ 1296.989161][T12836] Could not find device with ifindex 2000 in netnsfd 11
[ 1296.991275][T12836] Could not find netns with fd: 2000
[ 1296.992413][T12836] Cannot link a netdevsim to itself
[ 1296.993504][T12836] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).