1-9Configuring an Associated DeviceEnabling the Receiving of Flush MessagesYou do not need to enable all ports on the associated devices to receive flush messages sent from thetransmit control VLAN, only those on the master and slave links between the smart link device and thedestination device.Follow these steps to enable the receiving of flush messages:To do… Use the command… RemarksEnter system view system-view —Enter Ethernet interface view orLayer 2 aggregate interface viewinterface interface-typeinterface-number —Configure the control VLANs forreceiving flush messagessmart-link flush enable[ control-vlan vlan-id-list ]RequiredBy default, no controlVLAN exists for receivingflush messages.z Configure all the control VLANs to receive flush messages.z If no control VLAN is specified for processing flush messages, the device forwards the receivedflush messages without processing them.z Make sure that the receive control VLAN is the same as the transmit control VLAN configured onthe smart link device. If they are not the same, the associated device will forward the received flushmessages directly without any processing.z Do not remove the control VLANs. Otherwise, flush messages cannot be sent properly.z Make sure that the control VLANs are existing VLANs, and assign the ports capable of receivingflush messages to the control VLANs.Associated Device Configuration ExampleNetwork requirementsConfigure GigabitEthernet 1/0/1 to receive and process flush messages in VLAN 20.Configuration procedure system-view[Sysname] vlan 20[Sysname-vlan20] quit[Sysname] interface gigabitethernet 1/0/1[Sysname-GigabitEthernet1/0/1] port link-type trunk[Sysname-GigabitEthernet1/0/1] port trunk permit vlan 20[Sysname-GigabitEthernet1/0/1] smart-link flush enable control-vlan 20
