Udld; Udld Port Configuration - Planet GS-5220 User Manual

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
4-3-11-1 appears.
The page includes the following fields:
General Settings
Object
• Port
• UDLD Mode
User's Manual of GS-5220 PoE Series Managed Switch
Figure 4-3-11-1: UDLD Configuration Page Screenshot
Description
Port number of the switch.
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
232
Figure