[c-nsp] asr920 tag translation 1-to-2 unsupported?

[Mike]

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?