[  516.353963] netdevsim netdevsim767 eni767np1: renamed from eth1
[  516.451836] netdevsim netdevsim473 eni473np1: renamed from eth0
[  516.650916] Could not find device with ifindex 2000 in netnsfd 11
[  516.651108] Could not find netns with fd: 2000
[  516.651209] Cannot link a netdevsim to itself
[  516.651306] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).