HP A5120 EI - Enabling the Sending of Flush Messages; Configuring an Associated Device; Configuration Prerequisites; Enabling the Receiving of Flush Messages

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To do…
Use the command…
Remarks
Enable role preemption
preemption mode role
Required
Disabled by default
Configure the preemption delay
preemption delay delay-time
Optional
1 second by default
NOTE:
The preemption delay configuration takes effect only after role preemption is enabled.
Enabling the sending of flush messages
Follow these steps to enable the sending of flush messages:
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
Required
Enable flush update in the
specified control VLAN
flush enable [ control-vlan vlan-id
]
Optional
By default, flush update is
enabled, and VLAN 1 is the
control VLAN.
CAUTION:
 The control VLAN configured for a smart link group must be different from that configured for any other smart
link group.
 Make sure that the configured control VLAN already exists, and assign the smart link group member ports to the
control VLAN.
 The control VLAN of a smart link group should also be one of its protected VLANs. Do not remove the control
VLAN. Otherwise, flush messages cannot be sent properly.
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: