Hi Mike,

Would this work for you?

bridge-domain X

interface A
service instance 1 ethernet
encapsulation dot1q 131
rewrite ingress tag pop 1 symmetric
bridge-domain X

interface B
service instance 1 ethernet
encapsulation dot1q 313 second-dot1q 10
rewrite ingress tag pop 2 symmetric
bridge-domain X

Hope this helps.

Regards,
ShaoYi Tan

On 21/4/20, 3:51 AM, "cisco-nsp on behalf of Mike" 
<cisco-nsp-boun...@puck.nether.net on behalf of mike+li...@yourtownonline.com> 
wrote:

    Hello,

        I have an ASR920 and   I am trying to translate input dog1q tag
    '131' to dual-tagged '313,10'. My intention is to the bridge this over
    to another port that expects these frames on 313,10. But when I try
    configuring the translation, I get the following:

    Router(config)#interface gi0/0/0
    Router(config-if)#service instance 1 ethernet
    Router(config-if-srv)#encapsulation dot1q 131
    Router(config-if-srv)#rewrite ingress tag translate 1-to-2 dot1q 313
    second-dot1q 10 symmetric
     1_TO_2 not supported on EFP
     This rewrite ingress on ServInst 1(Gi0/0/0) is not allowed by platform
    or other components.


        Can anyone tell me how to get this done or is this just not possible
    on asr920?

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