[  523.285514] netdevsim netdevsim553 eni553np1: renamed from eth1
[  523.382247] netdevsim netdevsim374 eni374np1: renamed from eth0
[  523.636199] Could not find device with ifindex 2000 in netnsfd 11
[  523.636467] Could not find netns with fd: 2000
[  523.636584] Cannot link a netdevsim to itself
[  523.636721] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).