[  489.176777] netdevsim netdevsim624 eni624np1: renamed from eth1
[  489.273599] netdevsim netdevsim261 eni261np1: renamed from eth0
[  489.500770] Could not find device with ifindex 2000 in netnsfd 11
[  489.501092] Could not find netns with fd: 2000
[  489.501228] Cannot link a netdevsim to itself
[  489.501380] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).