[ 1227.380719][T11132] netdevsim netdevsim520 eni520np1: renamed from eth1
[ 1227.480965][T11134] netdevsim netdevsim449 eni449np1: renamed from eth0
[ 1230.572724][T11126] Could not find device with ifindex 2000 in netnsfd 11
[ 1230.573680][T11126] Could not find netns with fd: 2000
[ 1230.574253][T11126] Cannot link a netdevsim to itself
[ 1230.584739][T11126] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).