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Sun Ethernet Fabric Operating System

PVRST+ Administration Guide
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Document Information

Using This Documentation

Product Notes

Related Documentation

Acronyms and Abbreviations

CLI Command Modes

Feedback

Support and Accessibility

PVRST+ Overview

Protocol Description

Topology Example

Default Settings

Rapid STP

Bridge ID and Switch Priority

Election of the Root Switch

Port States

Port Roles

Rapid Convergence

Proposal Agreement Sequence

Topology Change and Topology Change Detection

VLAN Module

Configuring RSTP in PVRST+

Enable IPv6 Support and Assign IPv6 Addresses

Configure the Spanning-Tree Path Cost

Configure the Spanning Tree Link Type

Configure the Spanning-Tree portfast Setting

Configure Spanning Tree Timers

Display the Spanning Tree Status

Configure the Transmit Hold Count

Configure Encapsulation

Configure the BPDU Guard

Configure the Root Guard

Configuring the VLAN Module

Disable GVRP

Configuring Trunk and Access Ports

Configure a Trunk Port

Configure an Access Port

Set Up PVID on a Port

Configure VLANS and Display the PVRST+ Information for VLANs

Default Settings

When the switch comes up, MSTP is enabled. PVRST+ is started and enabled after GVRP is disabled. This table contains the default settings for the RSTP+ software:

Feature
Default Setting
Spanning-tree mode
MSTP
Spanning-tree status
Enabled
Spanning-tree timers
Hello time: 2 secondsForward-delay time: 15 seconds.Maximum-aging time: 20 seconds.
Switch priority
32768
STP priority (configurable on a per-interface basis)
128
STP cost (configurable on a per-interface basis)
2000
PVRST module
Disabled
Port type
Hybrid
GVRP
Enabled
VLAN module
Enabled
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