[  488.430849] netdevsim netdevsim261 eni261np1: renamed from eth0
[  488.527635] netdevsim netdevsim705 eni705np1: renamed from eth1
[  488.723470] Could not find device with ifindex 2000 in netnsfd 11
[  488.723830] Could not find netns with fd: 2000
[  488.723938] Cannot link a netdevsim to itself
[  488.724052] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).