[  488.656494] netdevsim netdevsim314 eni314np1: renamed from eth0
[  488.657284] netdevsim netdevsim546 eni546np1: renamed from eth0
[  488.743351] Could not find device with ifindex 2000 in netnsfd 11
[  488.743456] Could not find netns with fd: 2000
[  488.743510] Cannot link a netdevsim to itself
[  488.743574] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).