[Rstplib-users] RE: Rapid Spanning Tree 802.1w Simulator

[<al...@nb...>]

Dear Michael,
[My congratulations: you are the first poster in the mailing list !]

I passed the same stages as you: I've developed 802.1D before 5 years
and now I has been confused, that 802.1w doesn't have a procedural model.
So, I had to implement it "from scratch".

Yes, I have more information about the implementation; below I'll try to
answer
on your questions. From other side, the most relevant information
you may find in the project itself - it is open source project. Download
it, try to compile and run, and see the code.

> 1. what [do] you want to do ?
The good idea: in the nearest future I'll commit TODO file.
Briefly:
On the first stage I am going to debug it (and I hope to get help from
Source Forge like you) and take approval from IEEE. Among other, I have to
support
all management from 14.8 (now I missed, at least, 'mcheck').

Next: to implement multiple RSTP per VLAN. Actually, I have implemented the
case,
when for one VLAN there is one RSTP instance. Next will be one RSTP instance
for
list of VLANs, and after that it will be full 802.1s (MSTP) implementation.

Next, may be, optimizations for a ring case.

> 2. how the software should work, targets to run and so on.

As you may see from the sources, the project has system independent RSTP
library.
This library may (and should) be linked in any real environment. In the
project it
is linked with simple simulating program 'bridge', which gets/sends BPDUs as
messages via UDP socket.

Actually, this project is an open source part of our real (commercial)
products
and due the reasonable Source Forge agreements I can't do advertisement,
but if you want - find our internet site and see there the product list.

The "state machines engine" takes a separate place in the project. It allows
to implement
all complicated 802 standards almost in formal way.

I look forward to working with you in the frame of the project as this
technology evolves.

Best wishes. Alex

> -----Original Message-----
> From: nobody [mailto:no...@so...]On Behalf Of Michael
> Koestner
> Sent: Tuesday, November 13, 2001 11:28 AM
> To: al...@nb...
> Subject: Rapid Spanning Tree 802.1w Simulator
>
>
> Hi Alex,
>
> your project is very interesting for me. I have had already
>
> long time scope on the project IEEE802.1w. But there so few
>
> information in the draft. I miss example code like you can
>
> found in 802.1D for spanning tree cap. 8. Have you more
>
> information about implementation ? Can you give me more
>
> background of your project, like what you want to do, how
>
> the software should work, tragets to run and so on.
>
> I am a software developer at siemens and responsible for
>
> network components. I have made this job for 5 years and
>
> helped to developed a propritary redundancy algorithem for
>
> a simple ring topologie.
>
> So I hope you can give me quit more infromations:-)
>
> Regards
>
> Michael
>