To overcome the disadvantages of STP, RSTP changes the format of configuration BPDUs. Which of the following fields in STP BPDUs is used to specify the port role?
STP (Spanning Tree Protocol) BPDUs do not contain an explicit port role field. Instead, roles are determined indirectly.
RSTP (Rapid Spanning Tree Protocol) modifies BPDU structure by using the Flags field to indicate:
Port roles (Root, Designated, Alternate, Backup)
Proposal/Agreement (P/A) handshake mechanism
The correct field that specifies the port role in RSTP BPDUs is Flags.
???? Reference: Huawei HCIA-Datacom Study Guide, RSTP BPDU Structure and Flags Field.
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