[  536.753876] netdevsim netdevsim695 eni695np1: renamed from eth1
[  536.851779] netdevsim netdevsim397 eni397np1: renamed from eth0
[  537.085355] Could not find device with ifindex 2000 in netnsfd 11
[  537.085537] Could not find netns with fd: 2000
[  537.085625] Cannot link a netdevsim to itself
[  537.085740] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).