Chapter 65 Examples Of Spanning-Tree Protocols Configuration; Rstp On Ex Series Switches - Juniper JUNOS OS 10.3 - SOFTWARE Manual

CHAPTER 65
Examples of Spanning-Tree Protocols
Configuration
Example: Configuring Faster Convergence and Improving Network Stability with RSTP
on EX Series Switches
Copyright © 2010, Juniper Networks, Inc.
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
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