[  510.967011] netdevsim netdevsim547 eni547np1: renamed from eth1
[  511.064359] netdevsim netdevsim498 eni498np1: renamed from eth0
[  511.274025] Could not find device with ifindex 2000 in netnsfd 11
[  511.274238] Could not find netns with fd: 2000
[  511.274335] Cannot link a netdevsim to itself
[  511.274456] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).