Juniper JUNOS OS 10.3 - SOFTWARE, Manual, Page: 1623 / 3946

CHAPTER 65
Examples of Spanning-Tree Protocols
Configuration
• Example: Configuring Faster Convergence and Improving Network Stability with RSTP
on EX Series Switches on page 1527
•
Example: Configuring Network Regions for VLANs with MSTP on EX Series
Switches on page 1541
• Example: Configuring BPDU Protection on STP Interfaces to Prevent STP
Miscalculations on EX Series Switches on page 1561
•
Example: Configuring BPDU Protection on non-STP Interfaces to Prevent STP
Miscalculations on EX Series Switches on page 1565
• Example: Configuring Loop Protection to Prevent Interfaces from Transitioning from
Blocking to Forwarding in a Spanning Tree on EX Series Switches on page 1569
•
Example: Configuring Root Protection to Enforce Root Bridge Placement in Spanning
Trees on EX Series Switches on page 1573
Example: Configuring Faster Convergence and Improving Network Stability with RSTP
on EX Series Switches
EX Series switches use Rapid Spanning Tree Protocol (RSTP) to provide a loop-free
topology. RSTP identifies certain links as point to point. When a point-to-point link fails,
the alternate link can transition to the forwarding state. RSTP provides better
reconvergence time than original STP because it uses protocol handshake messages
rather than fixed timeouts. Eliminating the need to wait for timers to expire makes RSTP
more efficient than STP.
This example describes how to configure RSTP on four EX Series switches:
•
Requirements on page 1528
• Overview and Topology on page 1528
• Configuring RSTP on Switch 1 on page 1530
•
Configuring RSTP on Switch 2 on page 1532
•
Configuring RSTP on Switch 3 on page 1534
• Configuring RSTP on Switch 4 on page 1537
• Verification on page 1539
1527 Copyright © 2010, Juniper Networks, Inc.