[  487.961749] netdevsim netdevsim624 eni624np1: renamed from eth1
[  488.059076] netdevsim netdevsim334 eni334np1: renamed from eth0
[  488.274766] Could not find device with ifindex 2000 in netnsfd 11
[  488.274953] Could not find netns with fd: 2000
[  488.275049] Cannot link a netdevsim to itself
[  488.275177] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).