CCNA 2.7.b: BPDU Guard
Overview: BPDUGuard protects against loops that STP can’t protect against when PortFast is enabled Study Notes: BPDU Guard complements the functionality of PortFast On PortFast-enabled ports, BPDU Guard provides the protection against Layer 2 loops that STP cannot provide when STP PortFast is enabled In a valid configuration, PortFast Layer 2 LAN interfaces (edge ports) […]