[  495.562309] netdevsim netdevsim538 eni538np1: renamed from eth1
[  495.658695] netdevsim netdevsim373 eni373np1: renamed from eth0
[  495.884081] Could not find device with ifindex 2000 in netnsfd 11
[  495.884423] Could not find netns with fd: 2000
[  495.884535] Cannot link a netdevsim to itself
[  495.884646] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).