[  819.345567][T15804] netdevsim netdevsim411 eni411np1: renamed from eth0
[  819.369515][T15805] netdevsim netdevsim617 eni617np1: renamed from eth1
[  820.018148][T15791] Could not find device with ifindex 2000 in netnsfd 11
[  820.018835][T15791] Could not find netns with fd: 2000
[  820.019781][T15791] Cannot link a netdevsim to itself
[  820.020411][T15791] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).