Warning in mtu: Device ioll2 (node s1) does not support MTU 1600. MTU on links[1] changed to 1500 Warning in mtu: Device ioll2 (node s2) does not support MTU 1600. MTU on links[1] changed to 1500 Errors encountered while processing 20-vxlan-irb-ospf.yml IncorrectValue in quirks: Cannot use VLAN ID 1002 (VLAN green) on Cisco IOSvL2 or IOLL2 for historic reasons ... Set defaults.devices.ioll2.warnings.vlan.reserved to False to disable this check IncorrectValue in quirks: Cannot use VLAN ID 1003 (VLAN purple) on Cisco IOSvL2 or IOLL2 for historic reasons Fatal error in netlab: Cannot proceed beyond this point due to errors, exiting