Port Management: Unidirectional Link Detection
Before You Start
207 Cisco 500 Series Stackable Managed Switch Administration Guide
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- Fiber interfaces are in the global UDLD state.
- Non-fiber interfaces are in the disable state.
Before You Start
No preliminary tasks are required.
Common UDLD Tasks
This section describes some common tasks to setup UDLD.
Workflow1: To globally enable UDLD on fiber ports, perform the following
steps:
STEP 1 Open the Port Management > UDLD Global Settings page.
a. Enter the Message Time.
b. In the Fiber Port UDLD Default State field, enter either Disabled, Normal or
Aggressive as the global UDLD status.
STEP 2 Click Apply
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.
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