[  522.685359] netdevsim netdevsim519 eni519np1: renamed from eth1
[  522.782642] netdevsim netdevsim326 eni326np1: renamed from eth0
[  523.034001] Could not find device with ifindex 2000 in netnsfd 11
[  523.034215] Could not find netns with fd: 2000
[  523.034328] Cannot link a netdevsim to itself
[  523.034464] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).