[  485.219087] netdevsim netdevsim477 eni477np1: renamed from eth0
[  485.321291] netdevsim netdevsim555 eni555np1: renamed from eth1
[  485.672552] Could not find device with ifindex 2000 in netnsfd 11
[  485.672693] Could not find netns with fd: 2000
[  485.672755] Cannot link a netdevsim to itself
[  485.672832] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).