H3C Technologies H3C S3100 Series Switches - Manual (Page 951)

1-5
Operation Command Remarks
Configure a link aggregation
group as a member of the
Smart Link group
link-aggregation group
group-id { master | slave }
Optional
Enable the function of sending
flush messages in the specified
control VLAN
flush enable control-vlan
vlan-id
Optional
By default, no control VLAN for
sending flush messages is
specified.
Configuring Associated Devices
An associated device mentioned in this document refers to a device that supports Smart Link and
locally configured to process flush messages received from the specified control VLAN so as to work
with the corresponding Smart Link device. As shown in Figure 1-2 , all the devices including Switch C,
Switch D, and Switch E on the active and backup links connecting the Smart Link device (Switch A) and
the target uplink device (Switch E) are all associated devices.
However, you do not have to enable all the ports of an associated device to process flush messages
received from the specified control VLAN. You need to enable this function only on the ports that are on
the active and backup links connecting the Smart Link device and the target device. As shown in Figure
1-2 , you need to enable this function on Ethernet 1/0/2 and Ethernet 1/0/3 of Switch C, Ethernet 1/0/2
and Ethernet 1/0/3 of Switch D, and Ethernet 11/0/1 and Ethernet 1/0/12 of Switch E.
Table 1-4 Enable the specified port to process flush messages received from the specified control
VLAN
Operation Command Remarks
Enter system view system-view —
System
view
smart-link flush enable control-vlan
vlan-id port interface-type interface-number
[ to interface-type interface-number ]
interface interface-type interface-number
Enable the
specified port(s)
to process flush
messages
received from
the control
VLAN
Ethernet
port view
smart-link flush enable control-vlan
vlan-id
Required, use
either approach.
By default, no
control VLAN for
receiving flush
messages is
specified.
Precautions
When configuring Smart Link, pay attention to the following points:
1) A port or a link aggregation group cannot serve as a member port for two Smart Link groups. On
the other hand, a port or a link aggregation group cannot serve as a member for a Smart Link group
and a Monitor Link group at the same time.
2) STP cannot be enabled on the member ports of a Smart Link group. An STP-enabled port or a link
aggregation group with an STP-enabled port cannot serve as a member port for a Smart Link
group.
3) A Smart Link/Monitor Link group with members cannot be deleted.
4) Smart Link/Monitor Link is mutually exclusive with remote port mirroring.