CURRENT_MEETING_REPORT_
Reported by Kim Long/NYSERNet and Susan Hares/Merit
Minutes of the Joint Session of the BGP and IPIDRP Working Groups
BGP Status
A presentation on the status of BGP was given by Yakov Rekhter. The
documentation is complete, and the working group is waiting for the IESG
to approve the documents for publication as Proposed Standards. The
BGP-4 protocol specification needs one minor fix and will then be
submitted to the RFC Editor.
IDRP Status
A commercial version of IDRP is available from TELEBIT.
o IBM Implementation
Dave Jacobson gave a presentation on the IBM implementation of
IDRP. It is a stand-alone implementation which allows integrated IP
and ISO routing, and can be sent over IP or CLNP; it works with
gated. The coding phase is largely completed, and they are in the
process of doing unit testing. Four to six nodes have been tested.
The second stage will be a hardware system test. The basic
transport, internal/external redistribution, preference and
distributed policy, and kernel interface for the IP layer have been
implemented.
o Merit IDRP in Gated
The Merit implementation was presented by Sue Hares. Merit
implemented with OSI and IP. The debugging is all done on Unix (BSD
4.3+ (4.4 ISO code)). It was implemented on the 3.02 gated
release. They will move to gated 3.5 and gated 4.0 after release
1.0. They are tracking gated work.
- There is no policy base. It will have mandatory attributes
plus DIST_LIST_INCL, DIST_LIST_EXCL, NEXT_HOP, EXT_INFO,
MULTI_EXIT_DISC; attributes will be ready by 20 April.
- IDRP base and policy, and FAA auto configure bis will be ready
in May 1994. Aggregation and RDC support may come in the
summer of 1994.
- QOS attributes will be supported. Work is starting now, with
final delivery in November 1994. QOS requires multiple RIBs in
gated, QOS support in kernel, and IDRP changes.
- There is still no kernel for the SIPP work.
Intra-Domain Route Server
The goal of the intra-domain route server was to provide an alternative
to IBGP/IDRP full mesh. Dimitry Haskins's proposal tried to reduce the
number of IBGP connections without relying on IGP support to carry
BGP/IDRP routing information (e.g., without using OSPF or IS-IS
flooding).
Each BGP does not have to have a full routing table. The BGP queries
the route server when the first selection is no longer valid.
Many questions were raised regarding the implementation and architecture
of the server. The draft needs some clarification.
During the discussion, Tony Li presented an idea like Dimitry's with
``routing cliques.'' Tony described a route server which has a
hierarchical distribution of network announcements called cliques. Each
clique has a subset of routing information.
It was suggested to restructure the current Internet-Draft into two
documents---the first will cover just the route server, and the second
will address the ``route fetch on demand'' capabilities. It was also
suggested to replace the term ``route server'' in the first document
with something else.
The working group agreed that it would be highly useful to enable OSPF
and IS-IS flooding mechanisms to be used for flooding BGP/IDRP routing
information within a domain. The BGP Working Group Chair, Yakov
Rekhter, agreed to pass this information on to both the OSPF and IS-IS
Working Groups' Chairs for consideration and appropriate actions.
Route Dampening (ANS)
Curtis Villamizar presented a summary of his draft proposal on how to
weight timer values to dampen out the route flaps. This is done by
introducing a timer structure per route received from a peer, based upon
a timer and some state history.
No measurements were done and no statistics are available. CIDR impact
might address loss of AS. The working group agreed that it is worth
while to pursue the work further, but there is a need for more empirical
data to see whether it should be recommended for implementation or not.
Issues with Using TCP in BGP
Geoff Huston noted that a replay of TCP RST (reset) could cause problems
with BGP. Such replays may result in terminating BGP sessions (due to
the termination of the underlying TCP connection), which in turn would
cause routing instabilities.
BGP Future
Paul Traina suggested that any future work on BGP-4 be limited to bug
fixes, with the rest of the activities (including any new features)
being refocused on IDRP.
ROLC Joint Meeting
In the ROLC joint meeting, two items were discussed: ARP servers and
Curtis Villamizar's Internet-Draft on the NBMA BGP attribute.
Attendees
Vadim Antonov avg@sprint.net
Dennis Baker dbaker@wellfleet.com
William Barns barns@gateway.mitre.org
Tony Bates tony@ripe.net
Jordan Becker becker@ans.net
Erik-Jan Bos erik-jan.bos@surfnet.nl
Ronald Broersma ron@nosc.mil
Brad Burdick bburdick@radio.com
Jeffrey Burgan jeff@nsipo.nasa.gov
Joesph Burrescia burrescia@es.net
Henry Clark henryc@oar.net
David Conrad davidc@iij.ad.jp
Sean Doran smd@use.net
Tom Easterday tom@cic.net
Havard Eidnes havard.eidnes@runit.sintef.no
Nasser El-Aawar nna@ans.net
Deborah Estrin estrin@usc.edu
Dennis Ferguson dennis@ans.net
Peter Ford peter@goshawk.lanl.gov
Vince Fuller vaf@barrnet.net
Eugene Geer ewg@cc.bellcore.com
Susan Hares skh@merit.edu
Dimitry Haskin dhaskin@wellfleet.com
Kenneth Hays hays@scri.fsu.edu
Denise Heagerty denise@dxcoms.cern.ch
Scott Hinnrichs smh@netserv.com
Geoff Huston g.huston@aarnet.edu.au
David Jacobson dnjake@vnet.ibm.com
Dale Johnson dsj@merit.edu
Matthew Jonson jonson@ddn.af.mil
Akira Kato kato@wide.ad.jp
Hiroshi Kawazoe kawazoe@trl.ibm.co.jp
Sean Kennedy liam@nic.near.net
Mark Kosters markk@internic.net
John Krawczyk jkrawczy@wellfleet.com
Tony Li tli@cisco.com
Lars-Johan Liman liman@sunet.se
Robin Littlefield robin@wellfleet.com
Kim Long klong@nysernet.org
Peter Lothberg roll@stupi.se
Charles Lynn clynn@bbn.com
Jun Matsukata jm@eng.isas.ac.jp
Keith Mitchell keith@pipex.net
Pushpendra Mohta pushp@cerf.net
Robert Moose rmoose@gateway.mitre.org
Gilles-Andre Morin gamorin@shl.com
Dennis Morris morrisd@cc.ims.disa.mil
Sandra Murphy murphy@tis.com
Julie Myers jmyers@network.com
Peder Chr. Noergaard pcn@tbit.dk
Michael O'Dell mo@uunet.uu.net
Andrew Partan asp@uunet.uu.net
Michael Patton map@bbn.com
Jason Perreault jason@synoptics.com
David Piscitello dave@corecom.com
Duncan Rogerson d.rogerson@nosc.ja.net
Paul Schachter pschachter@atc.boeing.com
John Scudder jgs@merit.edu
Paul Serice serice@cos.com
Ed Stern els@proteon.com
Bernhard Stockman boss@ebone.net
Marten Terpstra marten@ripe.net
Paul Traina pst@cisco.com
Willem van der Scheun scheun@sara.nl
Curtis Villamizar curtis@ans.net
Chris Wheeler cwheeler@nwnet.net
Rick Wilder wilder@mcimail.com
Cathy Wittbrodt cjw@barrnet.net
Stephen Wolff steve@nsf.gov
Kwang Yao kwang@cup.hp.com
Jessica Yu jyy@merit.edu