[  509.579758] netdevsim netdevsim527 eni527np1: renamed from eth1
[  509.677212] netdevsim netdevsim270 eni270np1: renamed from eth0
[  509.864188] Could not find device with ifindex 2000 in netnsfd 11
[  509.864344] Could not find netns with fd: 2000
[  509.864428] Cannot link a netdevsim to itself
[  509.864517] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).