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 ARP
- 4.2.1.5 Users Configuration
- 4.2.1.6 Privilege Levels
- 4.2.1.7 NTP Configuration
- 4.2.1.8 Time Configuration
- 4.2.1.9 Time Configuration
- 4.2.1.10 UPnP
- 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 SNMP
- 4.2.3 RMON
- 4.2.4 DHCP Relay
- 4.2.5 DHCP server
- 4.2.6 Remote Management
- 4.2.1 Management
- 4.3 Switching
- 4.3.1 Port Management
- 4.3.2 Link Aggregation
- 4.3.3 VLANs
- 4.3.4 VLAN Translation
- 4.3.5 VLAN Translation Mappings
- 4.3.6 Private VLANs
- 4.3.7 VCL
- 4.3.8 GVRP
- 4.3.9 MRP
- 4.3.10 Spanning Tree
- 4.3.11 IGMP Snooping
- 4.3.12 MLD Snooping
- 4.3.13 MVR (Multicast VLAN Registration)
- 4.3.14 LLDP
- 4.3.15 MAC Address Table
- 4.3.16 Loop Protection
- 4.3.17 UDLD
- 4.3.18 Link OAM
- 4.3.19 CFM
- 4.3.20 sFlow
- 4.4 Routing
- 4.5 QoS
- 4.6 Security
- 4.7 POE
- 4.8 Ring
- 4.9 ONVIF
- 4.10 Maintenance
- 5. SWITCH OPERATION
- 6. TROUBLESHOOTING
- APPENDIX A: Networking Connection
- APPENDIX B : GLOSSARY
User’s Manual of GS-6320 and MGS-6320 Managed Switches
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4.3.17 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..
4.3.17.1 UDLD Port Configuration
This page allows the user to inspect the current UDLDconfigurations, and possibly change them as well. as screen in Figure
4-3-17-1 appears.
Figure 4-3-17-1: 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.
Aggressive: In aggressive mode, unidirectional detected ports will get
shutdown. To bring back the ports up, need to disable UDLDon that port