3com S7906E 설치 설명서

 

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A smart link device is a device that supports Smart Link and is configured with a smart link group 

and a transmit control VLAN for flush message transmission. Device C and Device D in 

 

are two examples of smart link devices.  

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An associated device is a device that supports Smart Link, and receives flush messages sent from 

the specified control VLAN. Device A, Device B, and Device E in 

 are examples of 

associated devices.  

 

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Before configuring a port as a smart link group member, shut down the port to prevent loops. You 

can bring up the port only after completing the smart link group configuration.  

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Disable STP and RRPP on the ports you want to add to the smart link group, and make sure that 

the ports are not member ports of any aggregation group or service loopback group.  

 

 

A loop may occur on the network during the time when STP is disabled but Smart Link has not yet taken 

effect on a port. 

 

Follow these steps to configure the protected VLANs for a smart link group: 

Enter system view 

— 

Create a smart link group and enter 
smart link group view 

smart-link group group-id 

— 

Configure protected VLANs for the 
smart link group 

protected-vlan reference-instance 
instance-id-list 

Required 

By default, no 
protected VLAN is 
configured for a smart 
link group.  

 

The protected-vlan command configures protected VLANs for a smart link group by referencing MSTIs. 

To view VLAN-to-MSTI mappings, use the display stp region-configuration command. For 

VLAN-to-MSTI mapping configuration, refer to MSTP Configuration in the Access Volume.