H3C Technologies H3C S10500 Series Switches - Manual (Page 112)

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Configuring an associated device
Configuration prerequisites
Disable the spanning tree feature on the associated device’s ports that connect to the member ports of
the smart link group; otherwise, the ports will discard flush messages when they are not in the forwarding
state in case of a topology change.
Enabling the receiving of flush messages
You do not need to enable all ports on the associated devices to receive flush messages sent from the
transmit control VLAN; you only need to enable those on the master and slave links between the smart
link device and the destination device.
Follow these steps to enable the receiving of flush messages:
To do… Use the command… Remarks
Enter system view system-view —
Enter Layer 2 Ethernet interface
view or Layer 2 aggregate
interface view
interface interface-type
interface-number
—
Configure the control VLANs for
receiving flush messages smart-link flush enable
[ control-vlan vlan-id-list ]
Required
By default, no control VLAN exists
for receiving flush messages.
NOTE:
•
Configure all the control VLANs to receive flush messages.
• If no control VLAN is specified for processing flush messages, the device forwards the received flush
messages without processing them.
• Make sure that the receive control VLAN is the same as the transmit control VLAN configured on the
smart link device. If they are not the same, the associated device will forward the received flush messages
directly without any processing.
• Do not remove the control VLANs. Otherwise, flush messages cannot be sent properly.
• Make sure that the control VLANs are existing VLANs, and assign the ports capable of receiving flush
messages to the control VLANs.
Displaying and maintaining Smart Link
To do... Use the command… Remarks
Display smart link group information
display smart-link group { group-id |
all } [ | { begin | exclude | include }
regular-expression ]
Available in any view
Display information about the received
flush messages display smart-link flush [ | { begin |
exclude | include } regular-expression ] Available in any view
Clear the statistics about flush
messages
reset smart-link statistics Available in user view