- For the nanoBTS in the SW Load Init and Load End message one needs
to add the SW_DESCR IE but without a length. 12.21 would probably
require the length but this is omitted. The other part is that the
file id must be set to "id\0" and the version to "version\ 0" or at
least was set like this in the example trace I had.
- Strings must be written with the '\0' in it.

- Actually the SW_DESCR IE doesn't have a length. It's defined in 12.21 - 9.4.62 as having a File ID IE followed by a File Version IE and since both have length, they don't use a length for SW_DESCR.
- And for the \0 things, I thing the file id and file version can be just any binary blob and they just choose to use zero terminated strings ...

So they just match 12.21 closely AFAICS :)

The data sent currently in sw activate packets is wrong btw ... there is a patch in my pending branch fixing that but apparently needs to be validated against a BS-11 to be sure it still works with it :p

Sylvain