HPE FlexFabric 5940 Series Configuration Manual page 23

Figure 1 Forcibly bring up a fiber port
Correct fiber
connection
Device A
Device B
Fiber port
Configuration restrictions and guidelines
When you forcibly bring up a fiber port, follow these restrictions and guidelines:
•
The loopback, shutdown, and port up-mode commands are mutually exclusive.
•
The following operations on a fiber port will cause link updown events before the port finally
stays up:
Configure both the port up-mode command and the speed or duplex command.
Install or remove fiber links or transceiver modules after you forcibly bring up the fiber port.
Configuration procedure
To forcibly bring up a fiber port:
Step
Enter system view.
1.
Enter Ethernet interface
2.
view.
Forcibly bring up the fiber
3.
port.
When Ethernet interfaces
cannot be or are not forcibly
brought up
Tx end Rx end
Command
system-view
interface interface-type
interface-number
port up-mode
Device A
Device B
Fiber link
Packets
13
When Ethernet interfaces
are forcibly brought up
Device A
Device B
The fiber is disconnected.
The interface is down.
Remarks
N/A
N/A
By default, a fiber port is not forcibly
brought up, and the physical state of a
fiber port depends on the physical state
of the fibers.