User Guide

ManualsBrandsTP-LINK ManualsNetworkingTL-SG5428

Table Of Contents

Package Contents
Chapter 1 About this Guide
- 1.1 Intended Readers
- 1.2 Conventions
- 1.3 Overview of This Guide
Chapter 2 Introduction
- 2.1 Overview of the Switch
- 2.2 Main Features
- 2.3 Appearance Description
  - 2.3.1 Front Panel
  - 2.3.2 Rear Panel
Chapter 3 Login to the Switch
- 3.1 Login
- 3.2 Configuration
Chapter 4 System
- 4.1 System Info
- 4.2 User Management
  - 4.2.1 User Table
  - 4.2.2 User Config
- 4.3 System Tools
- 4.4 Access Security
Chapter 5 Switching
- 5.1 Port
- 5.2 LAG
- 5.3 Traffic Monitor
  - 5.3.1 Traffic Summary
  - 5.3.2 Traffic Statistics
- 5.4 MAC Address
Chapter 6 VLAN
- 6.1 802.1Q VLAN
  - 6.1.1 VLAN Config
  - 6.1.2 Port Config
- 6.2 Protocol VLAN
- 6.3 VLAN VPN
  - 6.3.1 VPN Config
  - 6.3.2 Port Enable
- 6.4 GVRP
- 6.5 Private VLAN
  - 6.5.1 PVLAN Config
  - 6.5.2 Port Config
- 6.6 Application Example for 802.1Q VLAN
- 6.7 Application Example for Protocol VLAN
- 6.8 Application Example for Private VLAN
Chapter 7 Spanning Tree
- 7.1 STP Config
  - 7.1.1 STP Config
  - 7.1.2 STP Summary
- 7.2 Port Config
- 7.3 MSTP Instance
- 7.4 STP Security
  - 7.4.1 Port Protect
  - 7.4.2 TC Protect
- 7.5 Application Example for STP Function
Chapter 8 Multicast
- 8.1 IGMP Snooping
- 8.2 Application Example for Multicast VLAN
- 8.3 Multicast IP
  - 8.3.1 Multicast IP Table
  - 8.3.2 Static Multicast IP
- 8.4 Multicast Filter
  - 8.4.1 IP-Range
  - 8.4.2 Port Filter
- 8.5 Packet Statistics
Chapter 9 QoS
- 9.1 DiffServ
- 9.2 Bandwidth Control
  - 9.2.1 Rate Limit
  - 9.2.2 Storm Control
- 9.3 Voice VLAN
Chapter 10 ACL
- 10.1 Time-Range
- 10.2 ACL Config
- 10.3 Policy Config
- 10.4 Policy Binding
- 10.5 Application Example for ACL
Chapter 11 Network Security
- 11.1 IP-MAC Binding
- 11.2 ARP Inspection
- 11.3 IP Source Guard
- 11.4 DoS Defend
  - 11.4.1 DoS Defend
- 11.5 802.1X
Chapter 12 SNMP
- 12.1 SNMP Config
- 12.2 Notification
- 12.3 RMON
Chapter 13 LLDP
- 13.1 Basic Config
  - 13.1.1 Global Config
  - 13.1.2 Port Config
- 13.2 Device Info
  - 13.2.1 Local Info
  - 13.2.2 Neighbor Info
- 13.3 Device Statistics
Chapter 14 Cluster
- 14.1 NDP
- 14.2 NTDP
- 14.3 Cluster
- 14.4 Application Example for Cluster Function
Chapter 15 Maintenance
- 15.1 System Monitor
  - 15.1.1 CPU Monitor
  - 15.1.2 Memory Monitor
- 15.2 Log
- 15.3 Device Diagnostics
  - 15.3.1 Cable Test
  - 15.3.2 Loopback
- 15.4 Network Diagnostics
  - 15.4.1 Ping
  - 15.4.2 Tracert
Chapter 16 System Maintenance via FTP
Appendix A: Specifications
Appendix B: Configuring the PCs
Appendix C: 802.1X Client Software
Appendix D: Glossary

5.1.5 Loopback Detection

With loopback detection feature enabled, the switch can detect loops using loopback detection

packets. When a loop is detected, the switch will display an alert or further block the corresponding

port according to the port configuration.

Choose the menu Switching→Port→Loopback Detection to load the following page.

Figure 5-6 Loopback Detection Config

The following entries are displayed on this screen:

 Global Config

Loopback Detection

Status:

Here you can enable or disable loopback detection function

globally.

Detection Interval: Set a loopback detection interval between 1 and 1000 seconds.

By default, it’s 30 seconds.

Automatic Recovery

Time :

Time allowed for automatic recovery when a Loopback is

detected. The loopback detection recovery time can be set at

integral times of detection interval.

Web Refresh Status: Here you can enable or disable web automatic refresh.

Web Refresh Interval: Set a web refresh interval between 3 and 100 seconds. By default,

it’s 3 seconds.

 Port Config

Port Select: Click the Select button to quick-select the corresponding port

based on the port number you entered.