3Com WX3000 Configuring Associated Devices, Precautions, Flush enable control-vlan

To do…	Use the command…	Remarks
Enable the function of sending		Optional
	flush enable control-vlan	By default, no control VLAN for
flush messages in the specified
	vlan-id	sending flush messages is
control VLAN
		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 GigabitEthernet 1/0/2 and GigabitEthernet 1/0/3 of Switch C, GigabitEthernet 1/0/2 and GigabitEthernet 1/0/3 of Switch D, and GigabitEthernet 1/0/11 and GigabitEthernet 1/0/12 of Switch E.

Follow these steps to enable the specified port to process flush messages received from the specified control VLAN:

To do…		Use the command…	Remarks
Enter system view		system-view	—
Enable the	System	smart-link flush enable control-vlan vlan-idport	Required, use
specified
		interface-type interface-number [ to interface-type
port(s) to	view		either
		interface-number ]
process			approach.
flush			By default, no
messages		interface interface-type interface-number	control VLAN
received	Ethernet		for receiving
from the	port view	smart-link flush enable control-vlan vlan-id	flush messages
control			is specified.
VLAN

Precautions

When configuring Smart Link, pay attention to the following points:

z

z

z z z

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.

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.

A Smart Link/Monitor Link group with members cannot be deleted. Smart Link/Monitor Link is mutually exclusive with remote port mirroring.

When a Combo port operates as a member port of a Smart Link group, the optical port and the electrical port of the Combo port must not be both engaged with a cable at the same time.

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