[  455.185769] netdevsim netdevsim272 eni272np1: renamed from eth0
[  455.186634] netdevsim netdevsim531 eni531np1: renamed from eth1
[  455.278351] Could not find device with ifindex 2000 in netnsfd 11
[  455.278510] Could not find netns with fd: 2000
[  455.278611] Cannot link a netdevsim to itself
[  455.278742] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).