[  837.592501][T15781] netdevsim netdevsim311 eni311np1: renamed from eth0
[  837.602900][T15782] netdevsim netdevsim552 eni552np1: renamed from eth1
[  838.343241][T15770] Could not find device with ifindex 2000 in netnsfd 11
[  838.343928][T15770] Could not find netns with fd: 2000
[  838.344425][T15770] Cannot link a netdevsim to itself
[  838.344958][T15770] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).