Routing

How does qualified learning for virtual private LAN service operate?

By Elevate posted 02-04-2016 08:21

  

Question

How does qualified learning for virtual private LAN service operate?

Answer

The following illustration shows a sample topology used to answer this question:

 

 vpls example.png

 

Traffic type and direction: unknown unicast from CE1 VLAN700 to CE2 VLAN700.

 

In this example, first assume that Router PE2 is a Juniper Networks MX Series 3D Universal Edge Router. The packets from Router CE1 for VLAN700 are flooded from Router PE2 only on the ports connected to VLAN700. This behavior is VPLS qualified learning. MX Series routers perform qualified lookups and qualified learning.

 

You can use the monitor interface and show interface queue commands to verify this behavior.

 

For more information, click Layer 2 VPNs and VPLS Feature Guide.


#Layer2VPNs
#vpls
#FAQ
#vlan
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Comments

09-20-2016 12:25

Thank you for explaining the qualified mac learning on Juniper MX. So it also means that MX maintains the mac address per vlan i.e for each vlan it creates the separate MAC table. Please correct me if am wrong.

 

 

It would be very nice if you explain also unqualified MAC learning using same example.