Internet Area Report

   The Internet Area includes 17 WGs, 10 of which met. In addition, a
   BOF was held on the topic of IP over VBI (Vertical Blanking
   Interval).

VBI BOF

   This summary was adopted from the minutes reports by Simon Wegerif.

   The VBI BOF was held on Tuesday, August 12 and was chaired by
   Dan Zigmond <[email protected]>. Approximately 45 people attended
   the BOF.

   The purpose of this BOF was to judge interest in the subject of
   sending IP format data in a standard way over the analog TV
   Vertical Blanking Interval (VBI) and to determine whether an IETF
   Working Group should be formed to progress the work.

   Dan Zigmond gave an overview of the Vetical Blanking Interval and
   dicussed issues related to using the VBI to carry IP data.

   After discussions about the technology, the discussion centered
   around how to proceed with regards to this work inside the IETF. It
   was proposed that the scope of the IETF activity should initially
   be restricted to the layers between IP and the existing data link
   levels (NABTS / WST), rather than dealing with unicast / multicast
   issues. The scope needs to be defined as well as the domains of the
   computer and broadcasting industries should be made clear. It was
   agreed that the relevant broadcasting standards groups should be
   informed of this activity and their participation welcomed.

   It was the consensus of the group that a charter be put together
   with a justification for why this activity should proceed inside
   the IETF. This will be done before the next IETF meeting. A
   decision would then be made on whether to form a WG.

100VG-AnyLAN MIB (vgmib)

   Did not meet.

AToM MIB (atommib)

   Did not meet.

DNS IXFR, Notification, and Dynamic Update (dnsind)

   Adapted from report by Randy Bush <[email protected]>

   DNSIND met Tuesday 12 Aug for one hour.

   Conformance testing (a precondition for promotion to Draft Standard)
   of DynUpd, Notify, and IXFR are finally getting initial momentum.

   draft-ietf-dnsind-tsig-01.txt ready for WG last call.

   draft-ietf-dnsind-ncache-04.txt not ready for prime time, close but bad
   language problems.

   draft-eastlake-kitchen-sink-02.txt small issues are resolvable, but not
   clear that this is advisable on the whole.

   draft-ietf-dnsind-test-tlds-01.txt a chance to check ISO and other name
   standards and then ready for WG last call.

   draft-watson-dns-error-00.txt generally thought quite good.  Needs
   some revision, then ready for WG last call.

   A way to permit new RR types to use compression is needed.  Volunteer
   identified to produce draft.

   draft-eastlake-local-names-00.txt (which reserves some top-level
   domain names for local testing purposes) was mildly controversial but
   Donald will do a bit more work and then regauge the sense of the WG on
   what to do with the document.

   Note from the Internet ADs:

   The ADs are in discussion with the WG chair on the future of this
   WG. It seems clear that some sort of ongoing WG is needed to deal
   with DNS issues that continually surface. However, a new or
   rechartered (i.e., appropriately scoped) WG appears desireable. In
   addition, there are some folks that feel that work on the DNS
   should more or less stop with future effort directed at a DNSng. A
   BOF is planned for DC to consider the question of whether a DNSng
   is needed.

DS1/DS3 MIB (trunkmib)

   Did not meet.

Dynamic Host Configuration (dhc)

   Adapted from report by Ralph Droms <[email protected]>

   The DHC WG met twice, once for DHCPv4, once for DHCPv6.

   DHCPv6: Ralph Droms reviewed recent developments in the progress of
   the DHCPv6 docs in the standards process.  In particular, to ensure
   broad review of the documents, Droms requested external reviews from
   Erik Nordmark and Matt Crawford.  Those reviews, which were
   well-written and insightful and for which the WG is *very* grateful,
   pointed out several design issues that need to be resolved as well as
   editorial changes to improve and correct the documents.  The authors
   of the DHCPv6 documents, Jim Bound and Charlie Perkins, led the
   remainder of the WG meeting, in which the design issues were
   discussed.  Bound and Perkins will take the results of that discussion
   as further input in continuing to revise the DHCPv6 documents.

   DHVPv4: The WG discussed a number of different proposed options.  The
   WG agreed that the chair should issue WG last calls on:

   An option for FQDNs in DHCP options draft-ietf-dhc-fqdn-opt-03.txt
   An Extension to the DHCP Option Codes draft-ietf-dhc-options-opt127-03.txt
   Netware/IP Domain Name and Information draft-ietf-dhc-netware-options-00.txt
   DHCP Options for Novell Directory Services draft-provan-dhcp-options-dir-serv-01.tx

   Discussion of authentication and inter-server protocols continued in
   this meeting.  Olafur Gudmundsson and Baiju Patel agreed to develop a
   comparison of their two proposals.

   Michael Patrick's "agent options"
   (draft-ietf-dhc-agent-options-02.txt) proposal was *not* recommended
   for WG last call.

Frame Relay Service MIB (frnetmib)

   Did not meet.

IP Over IEEE 1394 (ip1394)

   Adapted from report by Myron Hattig <[email protected]>

   Munich IETF IP over 1394 WG Summary

   This was the initial meeting for this WG (an interim meeting was
   held a few weeks earlier). The WG made use of three sessions.

   IP Unicast, IP Broadcast, and ARP items discussed were:
   - Link Fragmentation & LLC/SNAP
   - Remove or retain EUI-64 in ARP format
   - Have fixed offset between bus resets
   - Discuss Editorial comments regarding current draft. (n
   - Remove or retain bridges as part of WG focus.
   - Discuss Pull Model
   - Uses of ARP and IP Broadcast Channel
   - Multiple vs Single FIFO
   - MTU size
   - Pre-assigned Channel number
   - 16 bit signature in Link Frag header
   Summary of changes to draft
   - Fixed Offset: Add comment regarding sending ARP response and
   values in the ARP response fields.
   - Bridges: Change draft to reflect bridges are not within the current
   scope of the IP over 1394 WG.
   - 16 bit Link Frag Header Signature: Spec will state that Node ID is
   best choice for 16 bit signature in link fragment header, but will
   not mandate NodeID. Spec will mandate any other selection process
   to have a reasonable assurance of uniqueness.
   Next items to be discussed on reflector
   - Link frag & encapsulation header format
   - IP manager election process
   - Address editorial comments about current draft
   - Pull Model
   - IP Multicast
   - Integrated Services
   There were presentations of IP multicast over 1394 and ISSL 1394.
   Discussed having an Interim Meeting. No date or agenda set.


IP Payload Compression Protocol (ippcp)

   Adapted from report by Naganand Doraswamy <[email protected]>

   The IP Payload Compression Protocol WG met for the first time at
   Munich. There were a few basic questions that need to be answered. The
   main issues were:

   1) Should we support session based compression? (answer: yes)
   2) Should the compression be stateful or stateless? (answer: stateless)
   3) Should we negotiate it as a protocol or attribute (answer: protocol)

   Discussion then centered on the specific drafts that had been produced
   for the meeting. During the discussion, most open issues were
   resolve. The next step is to modify the architecture document to
   incorporate all the changes that were discussed in the working group
   and open it up for discussion. Once the working group agress on the
   changes, we can move forward for last call.

IP over Cable Data Network (ipcdn)

   This summary is adopted from the report by Mike St. Johns.

   IP over Cable Data Networks met for one 2 hour session at Munich.

   Rich Woundy of Media One updated the group on MCNS standards
   progress and also discussed the relationship of cable modems to IP
   integrated services ala RSVP.

   Gerry White presented an outline for an IP over MCNS document and
   agreed to be the author for such document.

   Mark Laubach presented his IP over 802.14 document and the working
   group agreed to adopt it as a WG effort.

   Mike StJohns held a short discussion on the relationship of
   Multicast management to large public LANs such as cable data
   systems and ADSL systems.

   The final hour of the meeting was used as an editing session for
   the RF and Cable Modem MIBs.

IPNG (ipngwg)

   The IPng group met for two sessions and discussed numerous
   issues. Among the highlights: The WG discussed advancing various
   documents up the standards track. Documents that were updated to
   reflect the change in the size/format of the interface identifier
   (i.e, EUI-64 format) will be recycled at Proposed. A handful of other
   documents, including the base IPv6 spec have not changed significantly
   and the process to advance them to Draft Standard will be started.

   The loosely-defined (and unimplemented) 4-bit Priority field in the
   base IPv6 header was discussed at length. The WG decided to steal 4
   more bits from the Flow Label field to reserve 8-bits for a
   class/priority. The definition and semantics of the field will be
   pulled out of the base spec and defined in a separate document.

   The WG is at the point where the default minimum MTU of 576 is about
   to become pretty much impossible to change.  The WG decided that it
   would be good to raise the MTU to something larger (e.g., 1300 bytes),
   so that even with additional headers from tunneling, IPSec, etc.,
   packets would not require fragmentation over links with MTUs of 1500
   bytes.

IPv6 MIB (ipv6mib)

Did not meet.

ISDN MIB (isdnmib)

Did not meet.

Interfaces MIB (ifmib)

Did not meet. The WG is currently working on promoting RFC 1573
(interfaces MIB) to draft. A replacement draft is done, has been
through IETF Last Call, but there is still some question as to whether
all the features in the updated draft have been implemented by
multiple vendors.

Internetworking Over NBMA (ion)

   Adapted from report by "Andrew G. Malis" <[email protected]>

   ION met for two sessions, 195 attendees signed the roster.

   First session:

   Jim Luciani spoke on SCSP for MARS.  Jim's presentation was accepted
   by the group, and work on the document will continue.

   Grenville Armitage spoke on three topics, IPv6 over NBMA, the status
   of some of his other documents, and his new ion security draft.
   draft-armitage-ion-mars-nbma-02.txt is complete and Grenville has
   asked for a WG last call for Informational.  This will happen shortly.

   Juha Heinanen spoke on intra-area IP unicast among routers over legacy
   ATM. The chairs will discuss with the area directors whether this
   should be submitted as an informational or proposed standard RFC.

   Rob Coltun spoke on the OSPF ARA option.  Suggestions for improvement
   were made, and will be further discussed on the list.

   Shantigram Jagannath discussed end-to-end traffic management issues in
   IP/ATM internetworks.  This was provided for the working group's
   general information.  They will revise their draft based upon comments
   and future work, and the working group chairs will discuss with the
   area directors whether this fits within the working group charter as a
   working group document.

   Second session:

   Mike Davison presented ILMI-based server discovery.  These drafts have
   been adopted by the WG as a work item.

   David Breitgand presented IMSS, IP multicast shortcuts.

   George Swallow announced following the end of this talk that the
   chairs and the area directors will be updating the working group's
   charter to update the goals and milestones, and to determine the scope
   of future work, especially with regards to multicasting and shortcuts.
   No further action will be taken on this or other multicast shortcut
   proposals by the working group until the charter revision has
   completed.

   Norihiro Ishikawa presented IP Multicast Routing over ATM.  The WG
   agreed to take no further action on this draft.

   Jun Ogawa and Yao-Min Chen presented Responder Initiated Shortcut Path
   (RISP).  No further action will be taken on the draft.

   Note from Internet ADs:

   The ADs are in discussion with the WG chairs on the future of the
   WG. The WG/IESG expects to have finished work on NHRP and SCSP by
   the next IETF, which will clear out most of the work items in the
   ION charter. Some additional (and possible) work items remain, but
   they appear to be relatively straightforward and uncontentious. We
   expect the focus of the WG to be slimmed down in the next few
   months.

PacketWay met for one session.

   Adapted from report by Danny Cohen <[email protected]>

   Encouraged by the success of the first interoperability tests the
   group decided to focus on finalizing both the EEP document and the RRP
   documents.  In addition, the group decided to coordinate its
   resource-locating handling with the activities of the SRVLOC working
   group.

   The WG considered and approved an updated set of Goals &
   Milestones. The new milestones include delivery to the IESG (by the
   spring 1998 IETF) of the base set of pktway documents.

   Note from Internet ADs:

   The WG has missed delivering on its Goals & Milestones. A new set
   of Milestones has been agreed to and the WG has been directed to
   focus on those deliverables. The WG has also demonstrated a burst
   of recent activity.

Point-to-Point Protocol Extensions (pppext)

   Adapted from report by Karl Fox <[email protected]>

   The ISSLOW IP compression draft will be reworked slightly to simplify
   and then go back to one more draft.  I objected to the large number of
   8-bit PPP protocol numbers requested, based on a misunderstanding on
   my part of how many had been allocated so far.

   The L2TP over non-IPSEC networks was discussed.  The title is now
   different from what was originally commissioned, being for "non-IPSEC"
   rather than "non-IP" networks--I don't know how this will fly with the
   security directorate.  The draft still has a way to go.

   PPP LCP Callback, PPP LCP Self-describing Padding, and PPP LCP
   Extensions (the LCP Identity and Time-Remaining packets) are all at
   Draft Standard and have been around long enough to go to Standard.  I
   will collect interoperability experience reports and move those
   qualifying forward.

   Much time was spent discussing L2TP in both meetings as well as in a
   smaller group Tuesday evening.  The authorship of the -05 draft was
   moved from Andy Valencia to Bill Palter and Mark Townsley to help
   ensure that the new draft is available soon enough that people can
   code to it for the bakeoff at Compuserve in four weeks.  I believe
   that all or almost all outstanding issues were amicably resolved,
   something we have not been able to do in many months.

   PPP over AAL5 and PPP over FUNI are tracking similar documents in the
   ADSL forum, which are in turn tracking them.  One person is author of
   both documents, and is making sure that interoperability between the
   two (as well as RFC 1973) is maximized.  Another draft coming.

   A nice gentleman from the NSA presented a set of new drafts describing
   several link-layer authentication, key management and encryption
   protocols, at least one of which uses a classified algorithm.  He said
   that it is possible that the classified algorithm may be declassified,
   offering an unpatented alternative to Diffie-Hellman, and allowing the
   protocol to enter the standards track rather than being relegated to
   Informational.

   This was a good meeting.  The room was large enough, the sound system
   worked well, and a bunch of smart people made good comments.

Service Location Protocol (svrloc)

   Adapted from report by Erik Arthur Guttman <[email protected]>

   The agenda of the SVRLOC WG went as scheduled.  We discussed the
   status of the existing drafts and the need to recycle SLP at
   proposed.  During the subsequent charter discussion, it was
   agreed that the current work could be brought to closure by
   the next IETF meeting.

   A new and promising work item was discussed:  A proposal for
   Wide Area Service Location.  The discussion strayed some as the
   proposal contained material on billing, authentication,
   congestion control and more complex query processing than
   SLP allows.  Other question raising topics included using wide
   area service location for finding arbitrary services, like
   pizzarias, etc.  On close examination however, there is a
   core to the proposal which is detachable from these 'diverting'
   elements.  In general, the approach would be a very good
   match to SLP provided that:

   - Multicast wide service registration is acceptable, in some
   form to the multicast community, for the purposes of discovery.

   - The changes required of SLP are minor enough to not place
   large burdens on SAs (which need to be lightweight.)

   In separate meetings it was decided that this work item would
   not be added to the SVRLOC charter, but rather be presented
   at a BOF next IETF so that community thought could be solicited
   and interest guaged (potentially resulting in the formation of
   a new working group.)

   Note from Internet ADs:

   The WG expects to deliver a set of documents to the IESG by
   December. At that point, the WG will have delivered its core set of
   documents, and it may become appropriate to limit the WGs activities
   while experience from deployments is obtained. SLP is primarily
   oriented toward SLP within a site rather than on for Internet-wide
   service discovery.  There appears to be some interest in investigating
   the latter topic. However, we expect to host a BOF first to get a
   sense of just what problem needs to be solved, where the work should
   be done, how to scope it, etc.