Chapter 71 Examples Of Spanning-Tree Protocols Configuration; Rstp On Ex Series Switches - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

CHAPTER 71
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 1761
Example: Configuring Network Regions for VLANs with MSTP on EX Series
Switches on page 1775
Example: Configuring BPDU Protection on STP Interfaces to Prevent STP
Miscalculations on EX Series Switches on page 1795
Example: Configuring BPDU Protection on non-STP Interfaces to Prevent STP
Miscalculations on EX Series Switches on page 1799
Example: Configuring Loop Protection to Prevent Interfaces from Transitioning from
Blocking to Forwarding in a Spanning Tree on EX Series Switches on page 1803
Example: Configuring Root Protection to Enforce Root Bridge Placement in Spanning
Trees on EX Series Switches on page 1807
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 1762
Overview and Topology on page 1762
Configuring RSTP on Switch 1 on page 1764
Configuring RSTP on Switch 2 on page 1766
Configuring RSTP on Switch 3 on page 1768
Configuring RSTP on Switch 4 on page 1771
Verification on page 1773
1761