[  876.073755][T14761] netdevsim netdevsim270 eni270np1: renamed from eth0
[  876.081306][T14763] netdevsim netdevsim604 eni604np1: renamed from eth1
[  876.798185][T14749] Could not find device with ifindex 2000 in netnsfd 11
[  876.799439][T14749] Could not find netns with fd: 2000
[  876.800045][T14749] Cannot link a netdevsim to itself
[  876.800679][T14749] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).