User's Manual
Table Of Contents
- 1. INTRODUCTION
- 2. INSTALLATION
- 3. SWITCH MANAGEMENT
- 4. WEB CONFIGURATION
- 4.1 Main Web Page
- 4.2 System
- 4.2.1 Management
- 4.2.1.1 System Information
- 4.2.1.2 IP Configuration
- 4.2.1.3 IP Status
- 4.2.1.4 Users Configuration
- 4.2.1.5 Privilege Levels
- 4.2.1.6 NTP Configuration
- 4.2.1.7 Time Configuration
- 4.2.1.8 UPnP
- 4.2.1.9 DHCP Relay
- 4.2.1.10 DHCP Relay Statistics
- 4.2.1.11 CPU Load
- 4.2.1.12 System Log
- 4.2.1.13 Detailed Log
- 4.2.1.14 Remote Syslog
- 4.2.1.15 SMTP Configuration
- 4.2.2 Simple Network Management Protocol
- 4.2.3 RMON
- 4.2.4 DHCP server
- 4.2.1 Management
- 4.3 Switching
- 4.3.1 Port Management
- 4.3.2 Link Aggregation
- 4.3.3 VLAN
- 4.3.4 Spanning Tree Protocol
- 4.3.5 Multicast
- 4.3.6 MLD Snooping
- 4.3.7 MVR (Multicast VLAN Registration)
- 4.3.8 LLDP
- 4.3.9 MAC Address Table
- 4.3.10 Loop Protection
- 4.3.11 UDLD
- 4.3.12 GVRP
- 4.4 Quality of Service
- 4.5 Security
- 4.6 Maintenance
- 5. SWITCH OPERATION
- 6. TROUBLESHOOTING
- APPENDIX A: Networking Connection
- APPENDIX B : GLOSSARY
User’s Manual of MGSW-28240F Managed switch
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4.3.11 UDLD
Unidirectional Link Detection (UDLD) is a data link layer protocol from Cisco Systems to monitor the physical configuration of
the cables and detect unidirectional links. UDLD complements the Spanning Tree Protocol which is used to eliminate switching
loops..
4.3.11.1 UDLD Port Configuration
This page allows the user to inspect the current UDLDconfigurations, and possibly change them as well. as screen
in Figure 4-3-11-1 appears.
Figure 4-3-11-1: UDLD Configuration Page Screenshot
The page includes the following fields:
General Settings
Object Description
• Port
Port number of the switch.
• UDLD Mode
Configures the UDLD mode on a port. Valid values
are Disable, Normal and Aggressive. Default mode is Disable.
Disable: In disabled mode, UDLD functionality doesn't exists on port..
Normal: In normal mode, if the link state of the port was determined to be
unidirectional, it will not affect the port state.