Udld; Udld Port Configuration - Planet IGS-10020HPT-U User Manual

4.3.13 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..

4.3.13.1 UDLD Port Configuration

This page allows the user to inspect the current UDLDconfigurations, and possibly change them as well
4-3-13-1 appears.
The page includes the following fields:
General Settings
Object
• Port
• UDLD Mode
•
Message Interval
Buttons
: Click to apply changes
: Click to undo any changes made locally and revert to previously saved values.
Figure 4-3-13-1: 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
shutdown. To bring back the ports up, need to disable UDLDon that port
Configures the period of time between
in the advertisement phase and are determined to be bidirectional. The range is
from 7 to 90 seconds(Default value is 7 seconds)(Currently default time interval
is supported, due to lack of detailed information in RFC 5171).
227
User's Manual of IGS-10020HPT-U
.
as screen in
UDLD probe messages on ports that are
Figure