[rohc] iterative compression possible?

[Guanzhou Wang <wanggz.zte at gmail.com>]

Hi all

I'm pretty new to RoHC, and I'm wondering if current version(v1 or v2) supports "iterative compression" of headers? By "iterative compression" I mean compressing some inner headers first, and use the output as the input of another compression for the outer headers.

Why I ask this is because I think if there's some protocol header between the outer headers and inner headers  that current RoHC can't handle, we can use iterative method to compress all the compressible headers and leave those unrecognized headers untouched.

I appreciate any thoughts.

thanks,

Wanggz