HP A5120 EI - Smart Link Configuration Task List; Configuring a Smart Link Device; Configuration Prerequisites; Configuring Protected Vlans for a Smart Link Group

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downlink ports to the up/down state of uplink ports, triggering Smart Link to perform link switchover on
the downstream device.
NOTE:
For more information about Monitor Link, see the chapter “Monitor link configuration.”
Smart Link configuration task list
Complete the following tasks to configure Smart Link:
Task
Remarks
Configuring a smart link
device
Configuring protected VLANs for a smart link group
Required
Configuring member ports for a smart link group
Required
Configuring role preemption for a smart link group
Optional
Enabling the sending of flush messages
Optional
Configuring an
associated device
Enabling the receiving of flush messages
Required
NOTE:
 A smart link device is a network device that supports Smart Link and is configured with a smart link group and a
transmit control VLAN for flush message transmission. Device C and Device D in Figure 23 are two examples of
smart link devices.
 An associated device is a network device that supports Smart Link and receives flush messages sent from the
specified control VLAN. Device A, Device B, and Device E in Figure 23 are examples of associated devices.
Configuring a smart link device
Configuration prerequisites
 Before configuring a port as a smart link group member, shut down the port to prevent loops. You
can bring up the port only after completing the smart link group configuration.
 Disable STP and RRPP on the ports that you want to add to the smart link group, and make sure that
the ports are not member ports of any aggregation group.
CAUTION:
A loop may occur on the network during the time when STP is disabled but Smart Link has not yet taken
effect on a port.
Configuring protected VLANs for a smart link group
Follow these steps to configure the protected VLANs for a smart link group:
To do…
Use the command…
Remarks
Enter system view
system-view
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