6-40
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A smart link device is a 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
are two examples of smart link devices.
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An associated device is a device that supports Smart Link, and receives flush messages sent
from the specified control VLAN. Device A, Device B, and Device E in
are examples of
associated devices.
Configuring a Smart Link Device
Configuration Prerequisites
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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.
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Disable STP and RRPP on the ports you want to add to the smart link group, and make sure that
the ports are not member ports of any aggregation group.
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
—
Create a smart link group and enter
smart link group view
smart-link group
group-id
—
Configure protected VLANs for the
smart link group
protected-vlan
reference-instance
instance-id-list
Required
By default, no protected VLAN is
configured for a smart link group.