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Beginner

Vlan-aware MAC-learning on ASR920|IOS-XE

HI,

 

I do have a problem on and ASR920. I configured two service instances on one physical interface  for different .1q VLANs. Both instances attach the same device into the same bridge-domain. This is intended to be used for two  euqal services from a single CPE. Every instance needs to rewrite the incoming VLAN-TAG.

 

interface GigabitEthernet0/0/3
 service instance 34 ethernet
  encapsulation dot1q 34
  rewrite ingress tag translate 1-to-1 dot1q 101 symmetric
  bridge-domain 4 split-horizon group 0
 !
 service instance 35 ethernet
  encapsulation dot1q 35
  rewrite ingress tag translate 1-to-1 dot1q 102 symmetric
  bridge-domain 4 split-horizon group 0
 !

!

 

The problem here is , that the BD seems  to be "NOT VLAN-aware" and learns the MAC from both instances which results in a FlipFlop behaviour and packetloss for one of the instances.

Is it true that the ASR920 can not distinguish between the same MAC-Adr with differen .1q tags int the same bridge-domain.

 

Thanks & Regards,

Rene

 

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