Configuring Smart Link to Notify the VPLS/VLL Module of Link Switching Events
Pre-configuration Tasks
When Smart Link is used on a VPLS/VLL network, you can configure Smart Link to notify the VPLS/VLL module of link switching events so that the VPLS/VLL module can rapidly detect link switching events to minimize data packet loss.
Before configuring Smart Link to notify the VPLS/VLL module of link switching events, configure basic functions of Smart Link.
Context
In Figure 7-16, CE-A is dual-homed to the VPLS/VLL network through VLANIF interfaces or Dot1q termination sub-interfaces of the PEs. You can associate Smart Link with VPLS/VLL on the corresponding physical interfaces of PEs. The interfaces can then notify the VPLS/VLL module after receiving a Flush packet. After receiving the notification, the VPLS/VLL module clears the MAC addresses in the VSI/VLL bound to the VLANIF interface or sub-interface and sends messages to remote devices, prompting them to update MAC address entries.
You can associate Smart Link with VPLS/VLL only when CE-A is connected to the VPLS/VLL network through VLANIF interfaces or Dot1q sub-interfaces of the PEs.
Procedure
- Run system-view
The system view is displayed.
- Run interface interface-type interface-number
The interface view is displayed.
- Run smart-link { vpls-notify | vll-notify } enable
The interface is enabled to notify the VPLS/VLL module after receiving a Flush packet.
By default, an interface does not notify the VPLS/VLL module after receiving a Flush packet.