[  517.830163] netdevsim netdevsim310 eni310np1: renamed from eth0
[  517.928076] netdevsim netdevsim602 eni602np1: renamed from eth1
[  518.135092] Could not find device with ifindex 2000 in netnsfd 11
[  518.135297] Could not find netns with fd: 2000
[  518.135388] Cannot link a netdevsim to itself
[  518.135491] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).