[  485.067541] netdevsim netdevsim466 eni466np1: renamed from eth0
[  485.168357] netdevsim netdevsim763 eni763np1: renamed from eth1
[  485.524897] Could not find device with ifindex 2000 in netnsfd 11
[  485.525073] Could not find netns with fd: 2000
[  485.525177] Cannot link a netdevsim to itself
[  485.525307] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).