I've been trying to figure out how to setup a GRE tunnel between an ALU 7750SR and a 3rd party vendor.  I think it's balking at the VC-ID in the SDP but i'm hoping someone has experience getting a GRE tunnel to come up in a multi-vendor environment with ALU.

Here's the requested syntax:

    sdp 9999 create
    far-end 1.1.1.1 
    path-mtu 1500 
    keep-alive 
    exit

    ies 9998 customer 1 create 
     interface "PACKET_DESIGN" create 
     address 10.128.105.6/30 
     spoke-sdp 9999:1 create 
     no shutdown 
     exit 
    no shutdown