Manual
Table Of Contents
- Contents
- Figures
- Tables
- Preface
- Section I
- Basic Operations
- Chapter 1
- Starting a Web Browser Management Session
- Chapter 2
- Basic Switch Parameters
- Configuring the Switch’s Name, Location, and Contact
- Changing the Manager and Operator Passwords
- Setting the System Date and Time
- Rebooting a Switch
- Pinging a Remote System
- Returning the AT-S63 Management Software to the Factory Default Values
- Displaying the IP Address of the Local Interface
- Displaying System Information
- Chapter 3
- Enhanced Stacking
- Chapter 4
- SNMPv1 and SNMPv2c
- Chapter 5
- Port Parameters
- Chapter 6
- MAC Address Table
- Chapter 7
- Static Port Trunks
- Chapter 8
- Port Mirroring
- Section II
- Advanced Operations
- Chapter 9
- File System
- Chapter 10
- File Downloads and Uploads
- Chapter 11
- Event Logs and Syslog Servers
- Chapter 12
- Classifiers
- Chapter 13
- Access Control Lists
- Chapter 14
- Class of Service
- Chapter 15
- Quality of Service
- Chapter 16
- Denial of Service Defense
- Chapter 17
- IGMP Snooping
- Section III
- SNMPv3
- Chapter 18
- SNMPv3
- Configuring the SNMPv3 Protocol
- Enabling or Disabling SNMP Management
- Configuring the SNMPv3 User Table
- Configuring the SNMPv3 View Table
- Configuring the SNMPv3 Access Table
- Configuring the SNMPv3 SecurityToGroup Table
- Configuring the SNMPv3 Notify Table
- Configuring the SNMPv3 Target Address Table
- Configuring the SNMPv3 Target Parameters Table
- Configuring the SNMPv3 Community Table
- Displaying SNMPv3 Tables
- Section IV
- Spanning Tree Protocols
- Chapter 19
- Spanning Tree and Rapid Spanning Tree Protocols
- Chapter 20
- Multiple Spanning Tree Protocol
- Section V
- Virtual LANs
- Chapter 21
- Port-based and Tagged VLANs
- Chapter 22
- GARP VLAN Registration Protocol
- Section VI
- Port Security
- Chapter 23
- MAC Address-based Port Security
- Chapter 24
- 802.1x Port-based Network Access Control
- Section VII
- Management Security
- Chapter 25
- Encryption Keys, PKI, and SSL
- Chapter 26
- Secure Shell (SSH)
- Chapter 27
- TACACS+ and RADIUS Protocols
- Chapter 28
- Management Access Control List
- Index

Chapter 19: Spanning Tree and Rapid Spanning Tree Protocols
300 Section IV: Spanning Tree Protocols
5. To view port settings, click a port in the switch and click Status or
Settings.
The STP Settings page is shown in Figure 118.
Figure 118. STP Settings Page
The STP Settings page displays a table that contains the following
columns of information:
Port
The port number.
State
Current state of a port. The possible states are Listening, Learning,
Forwarding, or Blocking when spanning tree is enabled on the switch.
When spanning tree is not enabled on the switch or if a port is not
being used, its state will be disabled.
Cost
Port cost of the port.
Priority
The port’s priority value. The number is used as a tie breaker when
two or more ports have equal costs to the root bridge.
6. Click OK to close the page.
Resetting STP to
the Default
Settings
To reset STP to the factory default settings, perform the following
procedure:
1. From the Home page, select Configuration.
2. From the Configuration menu, select the Layer 2 option.
3. Select the Spanning Tree tab.
The Spanning Tree tab is shown in Figure 113 on page 292.
4. Verify there is no check in the Enable Spanning Tree check box. If
there is a check, click the option to remove it. Spanning tree must be
disabled in order for you to return it to its default settings.