Implementing GVRP host

Archived from groups: comp.dcom.lans.ethernet (More info?)

nospamplz@jippii.fi (Hess) wrote in message news:<47493026.0408050344.7f7bf542@posting.google.com>...
> I am trying to make a GVRP host to an endstation. The idea is that
> this host has static VLAN entries and it sends GVRP messages to a
> switch which creates dynamical VLAN entries and propagates GVRP
> messages further.
>
> I have read (=tried to understand) GVRP section of IEEE 802.1Q and
> some other GVRP related documents but lots of things are unclear for
> me.
>
> IEEE 802.1Q has "skeleton code" for implementing GVRP but I'm
> surprised that there doesn't seem to be any complete (or even less
> complete) source codes published in internet. There are few things,
> which I don't understand in above mentioned skeleton code. For
> example:

[..]

Since GVRP is an application of GARP, you would really need to
understand GARP before you can fully implement GVRP. GARP is
described in IEEE 802.1D. You might want to take a look at that
since it'll answer most of your questions. That is, for example,
where you would find sys.h.

Anoop

Archived from groups: comp.dcom.lans.ethernet (More info?)

nospamplz@jippii.fi (Hess) wrote in message news:<47493026.0408081220.5a1fa1f0@posting.google.com>...
> anoop@alumni.duke.edu (Anoop Ghanwani) wrote in message news:<50bde0e6.0408060601.2d290664@posting.google.com>...
> > [..]
> >
> > Since GVRP is an application of GARP, you would really need to
> > understand GARP before you can fully implement GVRP. GARP is
> > described in IEEE 802.1D. You might want to take a look at that
> > since it'll answer most of your questions. That is, for example,
> > where you would find sys.h.
>
> Yeah but I have been reading GARP section of IEEE 802.1D as well
> without getting answers For example that sys.h included some other
> libraries which are unknown to me. And I am more interested about code
> files than header files

In that case, you might try posting your queries to the IEEE 802.1
mailing list. See http://www.ieee802.org/1/email-pages/ for more
information on this. I am not aware of a public-domain GVRP
implementation, so I doubt you will be able to get any code.
However, the folks there are pretty good about clarifying concepts
for anyone posting to the list.

Anoop

Archived from groups: comp.dcom.lans.ethernet (More info?)

nospamplz@jippii.fi (Hess) wrote in message news:<47493026.0408091248.7d9546ea@posting.google.com>...
> Ok, I'll take a look of it. Thanks for your suggestion. It just really
> makes me wonder why there isn't any freeware GVRP implementations out
> there (and not many commercial ones either) - haven't people found the
> concept of it helpful?

There are the following commercial implementations:
http://www.futsoft.com/protocol_stacks.htm
http://www.ipinfusion.com/pdf/ZOS_L2-BRGD.pdf
http://www.level7.com/.
There are probably others as well.

A search on GVRP for Linux turned up this paper
which might address some of your issues:
http://www.think-wize.com/pvh_lk2003.pdf.

To the best of my knowledge GVRP is not a very
widely deployed protocol, and certainly not one that
a network administrator would trust users to run on
an end-station. In general, however, freeware versions
of bridging software are sparse.

Anoop