[c-nsp] PPPOE GIG SUB-INTEREFACE - 15.2S 7606-S

[Jake Jake]

We have an environment where we terminate our DSL customers over PPPoE on a
7606-S MPLS PE router with RSP720. The PPPoE sessions are terminated on a
GIG V2 interface of a SIP-400. Currently the IOS running on the device is
c7600rsp72043_rp-ADVIPSERVICESK9-M, Version 12.2(33)SRD. The following is
the current configuration used.

bba-group pppoe 7
virtual-template 7

interface GigabitEthernet2/1/3.142647 access
encapsulation dot1Q 14 second-dot1q 2647
pppoe enable group 7

interface Virtual-Template7
ip vrf forwarding TEST
ip address 10.10.10.1 255.255.255.252

In the  above scenario everything works well.

However we had to upgrade the router IOS to    15.2(4)S Advance
IPServicesk9 to support 4-byte ASN. After the upgrading we observed certain
commands used to terminate PPPoE on the sub-interfaces not available on
15.2(4)S , although  PPPoE on Gig and Ethernet with QinQ support is listed
under 15.2S feature set.

Command not available on 15.2S >>>>  pppoe enable group 7

Any suggestion on how to get this working on 15.2S IOS?