![]() There are two different methods to configure the bridge priority value on a Cisco Catalyst switch. ![]() ![]() When an administrator wants a specific switch to become a root bridge, the bridge priority value must be adjusted to ensure that it is lower than the bridge priority values of all the other switches on the network. Spanning-tree VLAN port cost (configurable on a per-VLAN basis)Ĭonfiguring and Verifying the Bridge ID (3.3.1.2) Spanning-tree VLAN port priority (configurable on a per-VLAN basis) Spanning-tree port cost (configurable on a per-interface basis) Spanning-tree port priority (configurable on a per-interface basis) PVST+ (Rapid PVST+ and MSTP are disabled.) Table 3-7 Default Switch Configuration Feature ![]() Notice that the default spanning-tree mode is PVST+. Table 3-7 shows the default spanning-tree configuration for a Cisco Catalyst 2960 Series switch. Catalyst 2960 Default Configuration (3.3.1.1) The focus of this topic is on how to configure PVST+ in a switched LAN environment. In this section, you will learn how to implement PVST+ and Rapid PVST+ in a switched LAN environment.
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