[  423.852889] netdevsim netdevsim301 eni301np1: renamed from eth0
[  423.853434] netdevsim netdevsim551 eni551np1: renamed from eth1
[  423.953111] Could not find device with ifindex 2000 in netnsfd 11
[  423.953244] Could not find netns with fd: 2000
[  423.953337] Cannot link a netdevsim to itself
[  423.953441] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).