[  483.043651] netdevsim netdevsim640 eni640np1: renamed from eth1
[  483.144409] netdevsim netdevsim277 eni277np1: renamed from eth0
[  483.510008] Could not find device with ifindex 2000 in netnsfd 11
[  483.510175] Could not find netns with fd: 2000
[  483.510290] Cannot link a netdevsim to itself
[  483.510400] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).