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-
- Internet Area
-
- Directors:
-
-
- o Stev Knowles: stev@ftp.com
- o Claudio Topolcic: topolcic@bbn.com
-
-
- Area Summary reported by Stev Knowles/FTP Software and
- Claudio Topolcic/BBN
-
- The following BOF and working groups met during the April IETF meeting
- in Danvers, Massachusetts:
-
-
- o MessageWay BOF (MSGWAY)
- o Dynamic Host Configuration Working Group (DHC)
- o DNS IXFR, Notification, and Dynamic Update Working Group (DNSIND)
- o Internet Stream Protocol V2 Working Group (ST2)
- o IP Over Asynchronous Transfer Mode Working Group (IPATM)
- o IPv6 MIB Working Group (IPV6MIB)
- o Point-to-Point Protocol Extensions Working Group (PPPEXT)
-
-
-
- MessageWay BOF (MSGWAY)
-
-
- This BOF session introduced the need for processors in separate,
- possibly non-homogeneous MPPs (Massively Parallel Processing systems) to
- communicate with each other. It was felt that IP provides more
- scalability and generality than necessary, and does not provide the high
- performance that this application requires. The MsgWay approach is to
- define a Level-3 protocol that is similar in its philosophy to IP, but
- has implementation details geared toward high-performance, possibly at
- some cost of generality and wide area scalability.
-
- Danny Cohen, the BOF chair, presented the proposed architecture. The
- following topics were discussed:
-
-
- o Why should MsgWay be an IETF activity? It is proposed to conduct
- the MsgWay activity as an IETF working group because of the firm
- belief that interoperability should be handled at Level 3 (not just
- at Levels 1 and 2), and because of the recognition that MPP
- networks are computer communication networks with much in common
- with the networks that the IETF community is dealing with.
-
- o Technical discussion and clarifications. Including similarity to
- IP, transport level reliability, source routing, MTU,
- interconnection of separate MsgWay islands.
-
-
- The purpose of the BOF was to evaluate appropriateness of the proposed
- work to the IETF and to determine community interest in creating a
- working group. Danny reported that in addition to those who
- participated in this BOF, there are about 20 other people from academia,
- government, and industry who expressed interest in participating in
- defining MsgWay, most of them had participated in two earlier meetings
- discussing MsgWay.
-
- Danny will work with Frank Kastenholz, an incoming Internet Area
- co-Director, on a draft charter for the working group, and will post it
- on the MsgWay mailing list. The MsgWay Working Group is expected to
- conduct its work over e-mail, to meet at IETF meetings, and to possibly
- have additional meetings between IETF meetings. It is expected to have
- a rough draft of the minimal MsgWay protocol by the next IETF meeting,
- in mid-July.
-
-
-
- Dynamic Host Configuration Working Group (DHC)
-
- Topics that were discussed included the following:
-
- o DHC in the Mobile IP environment.
-
- o DHCPREVALIDATE, which will be deleted; and DHCPINFORM, which was
- thought to be a good idea.
-
- o DHCPv6 for IPv6. Further discussion was deferred to the mailing
- list.
-
- o Reliable operation of replicated DHCP servers. A new mailing list
- will be created.
-
- o Client and server authentication. A three-way private key exchange
- was favored. Further discussion will take place on the host-conf
- mailing list.
-
- o ``Freely available'' DHCP implementations. There is one from WIDE,
- and there may be another soon.
-
-
-
- DNS IXFR, Notification, and Dynamic Update Working Group (DNSIND)
-
- Although it was hoped that this would be the last meeting of this group,
- it is now planned that the last meeting will be at the next IETF,
- particularly since this group may need to take on more DNS issues (with
- a corresponding update of the charter).
-
- Other topics that were discussed included:
-
- o IXFR operation and formats. Formats will be worked on, and delay
- going to RFC until implementation.
-
- o Proposal to split prefixes from host identifiers in Internet
- address records.
-
- o DNS Notify.
-
- o IPv6 address-to-name mapping.
-
- o Dynamic update. Many issues were discussed.
-
-
-
- Internet Stream Protocol V2 Working Group (ST2)
-
- Since the Protocol Specifications have been submitted as an RFC, the
- primary objective of the meeting was to review and discuss the draft of
- the State Machine document as well as to determine the future direction
- of the group.
-
- The group had already agreed to submit the ST protocol specification for
- publications as, per the charter, an Experimental RFC. Publication is
- awaiting IESG action. The State Machine draft is in progress with a
- targeted completion of June. If the State Machine draft is indeed
- completed in this time frame, the working group may not meet in
- Stockholm.
-
- The group discussed the State Machine draft, specifically:
-
- o When can data be transmitted?
-
- o The `E' bit in REFUSE messages must be added to all state diagrams.
-
- o Diagrams will be updated to show Local Resource Management
- interfaces on processing these messages.
-
- o Time out handling will be added in the next draft.
-
- o State machines for failure processing needs to be added.
-
- o A mechanism is needed to add API interfaces to state machines.
-
- o The handling of JOIN/JOIN REFUSE and upstream-oriented messages
- must be revisited.
-
- o The interfaces between origin and target sides of the router state
- machines must be specified in more detail.
-
-
-
- IP Over Asynchronous Transfer Mode Working Group (IPATM)
-
- The Routing Over Large Clouds (ROLC) and IPATM Working Groups met in a
- joint session on 3 April.
-
- The following three major topics were discussed:
-
- o IP architecture extensions for ATM. Yakov Rekhter presented
- draft-rekhter-ip-atm-architecture-00.txt, which discusses IP
- architecture extensions for ATM. The working group concluded that
- the current ROLC work meets some of Yakov's needs, and the future
- work in the IPATM Working Group should address the issues, in
- coordination with INTSERV and RSVP.
-
- o RFC 1577 client behavioral changes and NHRP and ATMARP
- interactions. Including single server issues with regard to fault
- tolerance and support for alternative services.
-
- o ATM Forum announcement. Relaxed document distribution policy to
- allow easier access to ATM Forum documents. There will be a BOF at
- the next IETF to discuss how to foster better interactions between
- the IETF and the ATM Forum.
-
-
- IPv6 MIB Working Group (IPV6MIB)
-
- This is a newly created working group. This group had met as a BOF at
- the San Jose IETF meeting, and this represented its first meeting as a
- working group. The working group's charter falls into three broad
- categories:
-
-
- o Identify changes, if any, to existing standards track SNMPv2
- document.
-
- o Potential changes to existing MIBs.
-
- o New and additional MIBs that are specific to the IP: Next
- Generation Protocol.
-
-
- The IPv6 MIB Working Group is initially chartered to identify specific
- areas of work and their corresponding work items, within each of the
- abovementioned categories.
-
- The following topics were discussed:
-
-
- o Working group charter. There was general agreement on the scope of
- work. Since most of the working groups with which IPv6 MIB was
- planning to coordinate are planning to shut down, the incoming Area
- Directors for the Internet and Network Management Areas and the
- IPV6MIB Working Group Chair agreed to (re)explore appropriate Areas
- where IPv6-related management oriented work may be conducted.
-
- o General overview of the required effort. Including, SNMP impact,
- SNMPv2 status, technical direction, changes to existing MIBs, new
- MIBs, and current work.
-
- o Changes not required. No changes were proposed to SNMPv2 SMI. No
- additional SNMP Protocol support (`extensions') are needed to
- manage IPv6 via IPv4 Managers. No changes would be required to the
- standards-track SNMPv2 documents.
-
- o Textual Conventions, Transport Mappings, and organization of
- existing MIBs. No definitive result or outcome. Follow-on
- discussions will continue on the mailing list.
-
-
- Point-to-Point Protocol Extensions Working Group (PPPEXT)
-
- The following topics were discussed:
-
- o Encryption Control Protocol (draft-ietf-pppext-encryption-03.txt)
- was returned by the IESG. Keith Sklower will write a draft
- addressing some issues.
-
- o ECP/CCP patent status. Steve Coya reported on the communication
- with Motorola.
-
- o Multilink Procedures RFC 1717. Fine tuning.
-
- o Extensible Authentication Protocol. Some clarifications and some
- decisions.
-
- o Public Key Authentication Proposal. This draft is either poorly
- worded or fundamentally incorrect; in either case, it requires a
- great deal of work.
-
- o IP Control Protocol. A number of agreements and clarifications
- were made with the purpose of allowing IPCP from Proposed Standard
- status to Draft Standard.
-
-