[  985.767062][ T9939] netdevsim netdevsim601 eni601np1: renamed from eth1
[  985.859318][ T9941] netdevsim netdevsim342 eni342np1: renamed from eth0
[  988.054710][ T9929] Could not find device with ifindex 2000 in netnsfd 11
[  988.056194][ T9929] Could not find netns with fd: 2000
[  988.057227][ T9929] Cannot link a netdevsim to itself
[  988.058251][ T9929] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).