1-5configured with role preemption, GE2/0/1 takes over to forward traffic as soon as the former master linkrecovers, while GE2/0/2 is automatically blocked and placed in the standby state.Load sharing mechanismA ring network may carry traffic of multiple VLANs. Smart link can forward traffic of different VLANs indifferent smart link groups, thus implementing load sharing.To implement load sharing, you can assign a port to multiple smart link groups (each configured withdifferent protected VLANs), making sure that the state of the port is different in these smart link groups.In this way, traffic of different VLANs can be forwarded along different paths.You can configure protected VLANs for a smart link group by referencing MSTIs.Collaboration Between Smart Link and CC of CFDSmart link cannot sense by itself when faults (for example, unidirectional link, misconnected fibers, andpacket loss) occur on the intermediate devices or network paths, or when faults are cleared. To checkthe link status, smart link ports need to use link detection protocols. When a fault is detected or cleared,the link detection protocols inform Smart Link to switch over the links.With the collaboration between Smart Link and the Continuity Check (CC) function of Connectivity FaultDetection (CFD) configured, CFD notifies the ports of fault detection events on the basis of detectionVLANs and detection ports. A port responds to a continuity check event only when the control VLAN ofthe smart link group to which it belongs matches the detection VLAN.For more information about the CC function of CFD, refer to Connectivity Fault Detection Configurationin the High Availability Volume.Smart Link Configuration Task ListComplete the following tasks to configure Smart Link:Task RemarksConfiguring Protected VLANs for a Smart Link Group RequiredConfiguring Member Ports for a Smart Link Group RequiredConfiguring Role Preemption for a Smart Link Group OptionalEnabling the Sending of Flush Messages OptionalConfiguring a SmartLink DeviceConfiguring the Collaboration Between Smart Link andCC of CFD OptionalConfiguring anAssociated Device Enabling the Receiving of Flush Messages Required
