[  493.384557] netdevsim netdevsim272 eni272np1: renamed from eth0
[  493.481340] netdevsim netdevsim659 eni659np1: renamed from eth1
[  493.711265] Could not find device with ifindex 2000 in netnsfd 11
[  493.711471] Could not find netns with fd: 2000
[  493.711558] Cannot link a netdevsim to itself
[  493.711661] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).