Subject: [Tsvwg] Report of the 3rd SCTP bakeoff

From: Michael Tüxen <[email-masked]>
Date: Fri, 27 Apr 2001 15:01:31 +0200

Dear all,

please find below the report of the 3rd SCTP bakeoff.

Best regards
Michael

SCTP Bakeoff Report
04/23-27/01
ETSI, Sophia Antilopis, France

1. Introduction

The 3rd SCTP Bakeoff was held at the ETSI facilities
in Sophia Antipolis, France. Siemens supported the 
bakeoff by providing technical support for the testbed.

The following companies participated in the bakeoff:

  - ADAX
  - Cisco
  - Compaq
  - Data Connection
  - DataKinetics
  - Ericsson
  - Hewlett Packard
  - Hughes Software
  - IBM
  - Motorola
  - Nokia
  - Open SS7
  - Performance Technologies
  - RadiSys (formerly S-Link)
  - Siemens
  - Sun Microsystems
  - Telesoft Technologies
  - Toshiba
  - Ulticom

The operating systems used at the bakeoff are:
 
  - AIX (1)
  - FreeBSD (2)
  - Linux (7)
  - QNX (1)
  - Solaris (4)
  - True64 (1)
  - Windows (3)
  
Among these there where 

  - 11 user land implementations,
  -  6 kernel implementations and
  -  2 hybrid user land / kernel implementations.

2. Testing

The tests where performed in a test net which run IPv4 and
IPv6 and was able to to provide message delay, message reordering
and message loss.

The tested features are the following (the number in paratheses gives
a lower estimation of the number of successful tests between
independent implementations):

  - Association setup with multiple addresses in INIT/INIT-ACK (53)
  - Association setup with single addresses INIT/INIT-ACK (16)
  - Association setup with no addresses INIT/INIT-ACK (8)
  - Closing the association after some data transmission (40)
  - Closing the association after no data transmission (37)
  - Ordered data transfer (54)
  - Hostname parameter in INIT (0)
  - Restart of an association and some data transmission after that (23)
  - Restart of an association and closing the association after that (16)
  - Fragmentation of data (38)
  - Bundling of data (39)
  - Abort of an association (30)
  - Handling of OOTB packets (21)
  - Chunk bit handling (7)
  - Parameter bit handling (10)
  - Stale cookie (6)
  - Path MTU discovery (16)
  - ECN (2)
  - Renig (2)
  - Unordered data transfer (fragmented, bundled and normal) (3)

So the only not tested featured is the handling of the hostname
parameter. Some implementations claimed that they are able to 
handle it, but no implementation was able to send it. So it
could no be tested.

During the IPv4/IPv6 testing it was not clear how to handle
the site-local and link-local addresses. The discussion of this
showed that there are at least two ways to handle the addresses.
There will be a seperate ID describing the two solutions to initiate
a discussion of that issue.

Other real issues were not found with RFC 2960. There will be some
clarifications made which will be included in a new version of the
bakeoff draft.

3. Conclusions

All but one feature was successfully tested at this bakeoff. 

There is a need to clarify the handling of IPv6 addresses in the
association setup. A separate ID will describe the outcome of the
discussion at the bakeoff and should be used as the basis of a 
discussion of this problem in a wider scope.

No other real issues were found at this bakeoff. Some minor 
clarifications will be included in the bakeoff ID.

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