26 ContentsMSTP with Multiple Forwarding Paths . . . . . . 635What are the Optional STP Features? . . . . . . 636Default STP Values . . . . . . . . . . . . . . . . . . . 639Configuring Spanning Tree (Web) . . . . . . . . . . . 640STP Global Settings . . . . . . . . . . . . . . . . 640STP Port Settings . . . . . . . . . . . . . . . . . 641STP LAG Settings . . . . . . . . . . . . . . . . . 643Rapid Spanning Tree . . . . . . . . . . . . . . . 644MSTP Settings . . . . . . . . . . . . . . . . . . 646MSTP Interface Settings . . . . . . . . . . . . . 648Configuring Spanning Tree (CLI) . . . . . . . . . . . . 650Configuring Global STP Bridge Settings . . . . . 650Configuring Optional STP Features . . . . . . . . 651Configuring STP Interface Settings. . . . . . . . 652Configuring MSTP Switch Settings . . . . . . . . 653Configuring MSTP Interface Settings . . . . . . 654STP Configuration Examples . . . . . . . . . . . . . . 655Configuring STP . . . . . . . . . . . . . . . . . . 655Configuring MSTP. . . . . . . . . . . . . . . . . 65723 Discovering Network Devices . . . . . . . . 659Device Discovery Overview . . . . . . . . . . . . . . 659What Is ISDP?. . . . . . . . . . . . . . . . . . . 659What is LLDP?. . . . . . . . . . . . . . . . . . . 659What is LLDP-MED? . . . . . . . . . . . . . . . 660Why are Device Discovery ProtocolsNeeded?. . . . . . . . . . . . . . . . . . . . . . 660
