[rbridge] Agenda items?

[Alper Yegin]

I have some clarification questions...

> I think an important issue to discuss is packet reordering.  The
current
> rbridge proposal introduces a significant possibility of L2 packet
> reordering within a network with a stable topology.  

What aspect of rbridge would cause this?

> IEEE bridges do not
> reorder packets except in some corner cases with the new rapid
spanning
> tree
> protocol and even then, it is only during a network topology change.
The
> traditional spanning tree protocol (non-rapid spanning tree) provides
no
> packet reordering even during topology change.  Since rbridges are
> targeted
> to support non-IP protocols, this issue should be addressed.

Is this increased reordering probability going to break anything? Or,
are you just identifying something that may impact IP+ layer
performance?

Thank you.

Alper





> 
> Michael
> 
> > -----Original Message-----
> > From: rbridge-bounces at postel.org
> > [mailto:rbridge-bounces at postel.org] On Behalf Of Erik Nordmark
> > Sent: Wednesday, February 02, 2005 6:19 PM
> > To: Developing a hybrid router/bridge.
> > Subject: [rbridge] Agenda items?
> >
> >
> > It is time to start thinking about the agenda for the BoF/WG
> > meeting in Minneapolis.
> >
> > Presumably we should go over the charter, but I'd like to
> > also spend time on technical discussions, which is the
> > subject of this email.
> >
> > I think there are several technical items that makes sense to
> > discuss, and I've tried to capture things from memory here.
> > If you had additional items let me know we can add them (but
> > you might get volunteered :-).
> > If you need stimulation it might make sense to re-read
> > draft-perlman-rbridge, and see if there are issues that come to
mind.
> >
> > What I'd like for each of these items is to have a volunteer
> > who will present the topic with the issues and the tradeoffs
> > (but no "solutions"), so that we all can try to understand
> > the different issues, and how they might interact.
> >
> > I'd like to see each topic be presented in advance (so that
> > folks can read about it) either as a concise email to the
> > list (which we can reference using URLs to the archive) or in
> > the form of a short internet draft.
> >
> > Here are the topics I have so far:
> > 1. What is the desired semantics of the cloud of hybrids?
> > Just "strict IEEE
> >     802 bridge equivalence", "IP works", or something in between?
> >
> >     I'll volunteer myself to lead the discussion on this topic.
> >
> > 2. Threats and security considerations
> >     What should the goal be? What can we do better?
> >
> >     Does anybody who brought this up on the list want to volunteer?
> >
> > 3. Requirements on routing protocols
> >      For zero configuration
> >      Carrying MAC addresses
> >      Broadcast
> >      IS-IS vs. OSPF vs. something else
> >
> >     Volunteer? I can dig out the discussion I had with Bob Hinden if
> >     that would stimulate someone to want to discuss this.
> >
> > 4. Connecting different L2 types (with different L2 address formats)
> >
> >     I think I've convinced Radia to lead this one
> >
> > 5. Choices for ARP/ND
> >
> >     We had some discussion on the list about this and how it
> > relates to
> >     intentionally duplicate L2 addresses, mobility, etc.
> >
> >     Any volunteers?
> >
> > 6. Choices for broadcast/multicast
> >
> >     Any volunteers?
> >
> > What am I missing?
> >
> >
> >     Erik
> >
> > _______________________________________________
> > rbridge mailing list
> > rbridge at postel.org
> > http://www.postel.org/mailman/listinfo/rbridge
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