RSTP vs MSTP

Question 1

RSTP and MSTP are both enhancements of the original Spanning Tree Protocol (STP)

Answer 1

designed to prevent loops in Layer 2 networks. However, they serve different purposes and have distinct advantages.

Question 2

RSTP (Rapid Spanning Tree Protocol)

Answer 2

• Standard: IEEE 802.1w
• Purpose: Improves STP by providing faster convergence (typically within seconds).
• Key Features:
• Introduces new port roles (Alternate, Backup) for quicker failover.
• Uses BPDU handshake to detect topology changes instantly.
• Backward compatible with STP.
• Best Use Case: Medium-sized networks where fast failover is critical.

Question 3

MSTP (Multiple Spanning Tree Protocol)

Answer 3

• Standard: IEEE 802.1s
• Purpose: Allows multiple spanning tree instances to optimize VLAN traffic.
• Key Features:
• Groups VLANs into MST instances, reducing unnecessary STP calculations.
• Supports load balancing across different VLANs.
• Works efficiently in large-scale enterprise networks.
• Best Use Case: Large networks with multiple VLANs requiring optimized traffic flow.