R3102-R3103-HP 6600/HSR6600 Routers High Availability Configuration Guide

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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 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, only those on the primary and secondary links between the Smart Link device
and the destination device.
Follow these guidelines when you enable the receiving of flush messages:
 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 correctly.
 Make sure that the control VLANs are existing VLANs, and assign the ports capable of receiving
flush messages to the control VLANs.
To enable the receiving of flush messages:
Step
Command
Remarks
1. Enter system view.
system-view
N/A
2. Enter Ethernet interface view
or Layer 2 aggregate
interface view.
interface interface-type
interface-number
N/A
3. Configure the control VLANs
for receiving flush messages.
smart-link flush enable
[ control-vlan vlan-id-list ]
By default, no control VLAN exists
for receiving flush messages.
Displaying and maintaining Smart Link
Task
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.