[  487.758276] netdevsim netdevsim740 eni740np1: renamed from eth1
[  487.858904] netdevsim netdevsim272 eni272np1: renamed from eth0
[  488.173962] Could not find device with ifindex 2000 in netnsfd 11
[  488.174112] Could not find netns with fd: 2000
[  488.174184] Cannot link a netdevsim to itself
[  488.174275] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).