Cisco Small Business 200 Series Administration Guide

Port Management: Unidirectional Link Detection
Configuring UDLD
Cisco Small Business 200 Series Smart Switch Administration Guide 139
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Workflow2: To change the UDLD configuration of a fiber port or to enable UDLD on a copper
port, perform the following steps:
STEP 1 Open the Port Management > UDLD Global Settings page.
a. Select a port.
b. Select either Default, Disabled, Normal or Aggressive as the port’s UDLD status. If you select Default,
the port receives the global setting.
STEP 2 Click Apply.
Workflow3: To bring a port up after it was shut down by UDLD and automatic reactivation was
not configured:
STEP 1 Open the Port Management > Error Recovery Settings page.
a. Select a port.
b. Click Reactivate.
Configuring UDLD
The UDLD feature can be configured for all fiber ports at one time (in the UDLD Global Settings page) or per
port (in the UDLD Interface Settings page).
UDLD Global Settings
The Fiber Port UDLD Default State is only applicable to fiber ports.
The Message Time field is applicable to both copper and fiber ports.
To configure UDLD globally:
STEP 1 Click Port Management > UDLD > UDLD Global Settings.
STEP 2 Enter the following fields:
• Message Time—Enter the interval between sending UDLD messages. This field is relevant for both
fiber and copper ports.
• Fiber Port UDLD Default State—This field is only relevant for fiber ports. The UDLD state of copper
ports must be set individually in the UDLD Interface Settings page. The possible states are:

Cisco Small Business 200 Series Specifications

General

Brand	Cisco
Model	Small Business 200 Series
Category	Switch
Language	English