[  515.698527] netdevsim netdevsim641 eni641np1: renamed from eth1
[  515.795164] netdevsim netdevsim433 eni433np1: renamed from eth0
[  516.036812] Could not find device with ifindex 2000 in netnsfd 11
[  516.036994] Could not find netns with fd: 2000
[  516.037083] Cannot link a netdevsim to itself
[  516.037195] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).