[  761.409118][T14438] netdevsim netdevsim301 eni301np1: renamed from eth0
[  761.420058][T14440] netdevsim netdevsim712 eni712np1: renamed from eth1
[  762.003301][T14426] Could not find device with ifindex 2000 in netnsfd 11
[  762.003833][T14426] Could not find netns with fd: 2000
[  762.004184][T14426] Cannot link a netdevsim to itself
[  762.004592][T14426] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).