Dell Force10 MXL Blade MXL 10/40GbE Switch IO Module Configuration Guide - Page 470

www.dell.com | support.dell.com Enable BPDU Filtering globally The enabling of BPDU Filtering stops transmitting of BPDUs on the operational port fast enabled ports by default. When BPDUs are received, the spanning tree is automatically prepared. By default global bpdu filtering is disabled. Figure 27-7. BPDU Filtering enabled globally Task Enable BPDU Filter globally to filter transmission of BPDU port fast enabled interfaces. Command Syntax edge-port bpdu filter default Command Mode PROTOCOL SPANNING TREE RSTP Modify Interface Parameters On interfaces in Layer 2 mode, you can set the port cost and port priority values. • Port cost is a value that is based on the interface type. The default values are listed in Table 27-2. The greater the port cost, the less likely the port is selected to be a forwarding port. • Port priority influences the likelihood that a port is selected to be a forwarding port in case that several ports have the same port cost. 468 | Rapid Spanning Tree Protocol (RSTP)