H3C Technologies H3C S3600 Series Switches - Manual (Page 1131)

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10) If the control VLAN for receiving flush messages configured on an associated device is different
than the one for sending flush messages configured on the corresponding Smart Link device, the
device will forward received flush messages without processing them.
11) In the static or manual link aggregation group which serves as a smart link group member, if a
member port can process flush messages, this function cannot be synchronized to the other ports
in the aggregation group automatically, that is, the other member ports in the aggregation group
cannot process flush messages. The function of processing flush messages must be manually
configured for each port in the aggregation group.
12) The VLAN configured as a control VLAN to send and receive flush messages must exist. You
cannot directly remove the control VLAN. When a dynamic VLAN is configured as the control VLAN
for the smart link group, this VLAN will become a static VLAN, and the prompt information is
displayed.
Displaying and Maintaining Smart Link
To do… Use the command… Remarks
Display the information of a
smart link group display smart-link group
{ group-id | all }
Display the statistics
information of flush messages
received and processed by the
current device
display smart-link flush
Available in any view.
Clear flush message statistics
reset smart-link packets
counter
Available in user view.
Smart Link Configuration Example
Implementing Link Redundancy Backup
Network requirements
As shown in Figure 1-3 , Switch A is an H3C S3600 series Ethernet switch. Switch C, Switch D and
Switch E support Smart Link. Configure Smart Link feature to provide remote PCs with reliable access
to the server.