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- INTERIM_MEETING_REPORT_
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-
- Reported by Bob Hinden/Sun
-
- Minute of the IP Address Encapsulation Working Group (IPAE)
-
- An interim meeting of the IPAE Working Group took place on March 3,
- 1993. Participants via the MCI Phone Bridge included, Mike Conn, Yakov
- Rekhter, Christina Huitema and Carl Beame. On-site participants
- included, Bob Hinden, Dave Crocker, Erik Nordmark, Steve Deering, Chuck
- Desostoa, and Ron Jacoby.
-
- Review Implementations Status
-
- Christian reported that Werner Vogels/IENSC is doing a Mach
- implementation.
-
- Christian is able to spend about twenty percent of his time on SIP
- implementation. Steve Deering suggested looking at latest Berkeley
- release on UU.NET sources for the latest BSD implementations that
- support variable length network addresses (called NET2). Christian
- would like to have a module that could be added to existing kernels. A
- SIP route module like MRoute module needs to be incorporated.
-
- Chuck Desostoa reported that he is interested in doing an implementation
- but that he does not have the resources to do it now. Dave Crocker
- suggested that Hewlett-Packard work with INRIA and TGV because these
- implementations are based on BSD code.
-
- The Silicon Graphics (SGI) implementation is underway and it is expected
- that the pings will be working within the next few weeks.
-
- Beame/Sun Test: Telnet and FTP are working. There is still ICMP
- testing being done. There are some problems with ICMP checksums. When
- ICMP is done, complete transport will be done; then on to applications.
- Expect a few more hours work. Clarified: B&W only doing IPAE now.
-
- Geoff Mulligan/KA9Q: SIP packets flowing from KA9Q. Need to test with
- other implementations.
-
- Gary Malkin is doing extensions to SIP stuff for RIPv2. Some discussion
- on merits of Distance Vector..... [Note: Draft of SIP RIP now out as
- an Internet-Draft]
-
- Bob Gilligan met with James Davidson of Network General. Network
- General wants to do SIP/IPAE sniffer implementation. They collected
- some SIP/IPAE traffic traces.
-
- Planning for IETF Meeting
-
- The next IPAE meeting will be held during the March IETF on Monday at
- 4:30-6pm. The Group discussed what should be done for the IETF? Give
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- implementation status reports? Discuss ease of implementations, etc.
- Carl Beame said that he can attend, and might have SIP working by then.
- Sun is to get Solaris 2.x to Beame.
-
- The Group decided to give a demonstration of the following Protocol at
- the March IETF:
-
-
- o Telnet
- o FTP
- o Ping
- o TFTP (?)
- o Email (?)
-
-
- The Group decided to setup testing for the IETF demonstration on
- Wednesday, at SGI. There will be a mixture of on-site and Internet
- testing.
-
- Christian suggested that it was important to have working
- implementations on the Internet to test against. Sun and SGI can do
- this. Christian has also been getting inquiries about doing a SIP
- pilot. He will facilitate this in Europe.
-
- SGI will put B&W implementation on the Internet. Carl Beame will be at
- INTEROP and will meet with Dave Crocker and Bob Hinden.
-
- The Group needs to put together a test scenario before the 24th. Steve
- Deering suggested that a short demonstration document be put together.
-
- There was some discussion about BIND and DNS name services. Erik
- Nordmark will look into adding this to Sun Implementation. Christian
- expects to have it running soon tool. Will need to put AE records in to
- make it useful.
-
- IPAE Protocol Issues
-
- Steve Deering proposed there be a 4 byte PAD between IP and SIP. This
- would help 64bit machines. He wants comments from implementors and
- proposed always putting 4 bytes of zero PADs between headers. This will
- allow more efficient processing of SIP packets on 64bit machines. Only
- for encapsulating SIP in IPv4. Christian didn't like the original
- proposal because of implementation and performance costs. The new
- proposal still requires extra overhead which will be useful in the short
- to medium term. A long discussion followed on this topic.
-
- The Group decided to leave it the way it is now (e.g., no padding
- between IP and SIP headers) their view being that the complexity was not
- worth the gain. It needs to be proven that this is really a win in the
- IPAE case as the gain is not clear given the added complexity to support
- it.
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- Next Meeting
-
- The next meeting of the IPAE Working Group will take place in March with
- a demonstration of the SIP/IPAE Dry Run at Silicon Graphics.
-
- Action Items
-
-
- Steve Deering/Erik Nordmark To see what is required to do
- audio/video demonstration at IETF.
- Dave Crocker To get slot for demonstration. He will
- try for Tuesday afternoon or evening.
- Bob Gilligan To document demonstration scenario for
- testing.
- Ron Jacoby To put B&W implementation up on
- Internet.
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