[  482.932183] netdevsim netdevsim501 eni501np1: renamed from eth0
[  483.034305] netdevsim netdevsim755 eni755np1: renamed from eth1
[  483.352088] Could not find device with ifindex 2000 in netnsfd 11
[  483.352260] Could not find netns with fd: 2000
[  483.352352] Cannot link a netdevsim to itself
[  483.352469] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).