ERPS commands clear erps statistics erps ring erps ring <ringid> <port0|port1> interface erps ring <ringid> description erps ring <ringid> guard-interval erps ring <ringid> hold-off-interval erps ring <ringid> instance erps ring <ringid> instance <id> control-vlan erps ring <ringid> instance <id> description erps ring <ringid> instance <id> enable erps ring <ringid> instance <id> protected-vlans erps ring <ringid> instance <id> role erps ring <ringid> instance <id> rpl erps ring <ringid> meg-level erps ring <ringid> parent-ring erps ring <ringid> sub-ring erps ring <ringid> tcn-propogation erps ring <ringid> transmission-interval erps ring <ringid> wtr-interval show erps statistics show erps status show erps summary