Cisco SF550X-24, Руководство администратора, Страница: 209 / 725

Port Management
UDLD
159 Cisco Sx350, SG350X, SG350XG, Sx550X & SG550XG Series Managed Switches, Firmware Release 2.2.5.x
9
• Default expiration time is 45 seconds (3 times the message time).
• Default port UDLD state:
- 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 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 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 Error Recovery Settings page.
a. Select a port.
b. Click Reactivate .