[  475.056309] netdevsim netdevsim257 eni257np1: renamed from eth0
[  475.057058] netdevsim netdevsim766 eni766np1: renamed from eth1
[  475.140824] Could not find device with ifindex 2000 in netnsfd 11
[  475.140909] Could not find netns with fd: 2000
[  475.140955] Cannot link a netdevsim to itself
[  475.141009] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).