[  827.467258][T15651] netdevsim netdevsim321 eni321np1: renamed from eth0
[  827.490136][T15650] netdevsim netdevsim563 eni563np1: renamed from eth1
[  828.095129][T15639] Could not find device with ifindex 2000 in netnsfd 11
[  828.095791][T15639] Could not find netns with fd: 2000
[  828.096242][T15639] Cannot link a netdevsim to itself
[  828.096751][T15639] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).