Tool to graphically represent long packets

[Hannu Vuolasaho]

Hi!

I'm writing protocol specification and I'm having hard time to find the info my document already.
Even that is nothing new I think I have a solution for it.

I want to put to my header bar which has boxes for header, target, payload, checksum etc.
Next I want to "zoom" the part under the main boxes and have more detailed view of the current part.
This could be generated from contents.

Anyway. I'm not even close to that yet. Are there any good tools. I looked bitfields latex package and tikz spy.

This system would be used in text. ight now I have rather ugly pictures.

My idea is to make something like this:

|header | payload | checksum|
|           \
|                        \
|                                      \
|target | source | timestamp|

|header | payload | checksum|
           /              \
/                                         \
|data | info | something | more |

Best regards,
Hannu Vuolasaho