Operation Manual – RRPPH3C S9500 Series Routing Switches Chapter 1 RRPP Configuration1-18II. Configuration procedureCaution:Make sure the switch ports on the Ethernet rings have been configured as trunk portswhich allow data VLAN packets to pass. system-view[H3C] link-aggregation group 2 mode manual[H3C] interface Ethernet 1/1/2[H3C-Ethernet1/1/2] port link-aggregation group 2Please wait...Done.[H3C-Ethernet1/1/2] quit[H3C] interface Ethernet 1/1/3[H3C-Ethernet1/1/3] port link-aggregation group 2Please wait...Done.[H3C-Ethernet1/1/3] quit[H3C] rrpp domain 1[H3C-RRPP-Domain1] control-vlan 4092[H3C-RRPP-Domain1] ring 1 node-mode transit primary-port Ethernet1/1/1secondary-port link-aggregation 2 level 0[H3C-RRPP-Domain1] ring 2 node-mode edge common-port link-aggregation 2edge-port Ethernet 1/1/4[H3C-RRPP-Domain1] ring 1 enable[H3C-RRPP-Domain1] ring 2 enable[H3C-RRPP-Domain1] quit[H3C] rrpp enable1.5 Assistant Edge Node Configuration1.5.1 Configuration PrerequisitesThe switch ports on the Ethernet rings have been configured as trunk ports which allowdata VLAN packets to pass.1.5.2 Assistant Edge Node Configuration TasksThe following table describes the assistant edge node configuration tasks.Follow these steps to configure the assistant edge node of a subring: