home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Internet Info 1994 March
/
Internet Info CD-ROM (Walnut Creek) (March 1994).iso
/
inet
/
ietf
/
opstat
/
opstat-minutes-92mar.txt
< prev
next >
Wrap
Text File
|
1993-02-17
|
5KB
|
132 lines
Minutes from the Operational Statistics Working Group meetings at
the San Diego IETF, March 16-20, 1992.
Participants:
Chris Myers chris@wugate.wustl.edu
Nevil Brownbe nevil@aukuni.ac.az
Brian Shiflett bshiflet@icm1.icp.net
Jim Alfieri jdal@troy.cc.bellcore.com
Ken Goodwin goodwin@psc.edu
Stefan Fassbender stf@easi.net
David Waitman djw@bbn.com
Robert J Reschly Jr reschly@brl.com
Ron Roberts roberts@jessica.stanford.edu
Henry Clark henryc@oar.net
Frances Yeh fyeh@rafael.jpl.nasa.gov
Al Wiersma wiersma@nsipo.nasa.gov
Ursula Sinkewicz sinkewic@decvax.dec.com
Miriam Nihart miriam@ltning.zso.dec.com
Dale S Johnsson dsj@merit.edu
Vikas Aggarwal vikas@jvnc.net
Pushpendre Mohte pushp@cerf.net
Bill Bliss billbl@microsoft.com
Tom Easterday tom@cic.net
Frank Solensky solensky@clearpoint.com
Linda Liebengood ldl@ans.net
Kary Robertson kr@concord.com
Hock-Koon Lim lim@po.cwru.edu
Bill Mannings bmanning@rice.edu
First session, Tuesday March 17.
1. Review of the OPSTAT document.
The document on "A Internet Model for Operational Statistics" was
reviewed. Decisions:
- In listings of MIB variables suggested for gathering the name
shall be the last part of the fully qualified MIB name as long as
this uniquely defines the variable.
- A suggestion of adding InErrors and OutErrors was not approved as
these variables are counted differently in different MIB
implementations.
- Valid types for bandwidths and protocol types should be explicitly
enumerated.
- The timezone part of the timestamp in the datasection is redundant
and is moved to the devicesection.
- It shall be more clearly stated that document gives
recommendations and polling and saving periods are not mandatory.
After these changes have been included the meeting decided that the
document shall be submitted as Internet Draft. Changes suggested
that would make major changes necessary can be discussed and decided
on during the six month Internet Draft reviewing period.
2. SQL Database
The meeting discussed possible use of SQL database technique As SQL
is optimized for other purposes than retrieval of serialized data
the meeting concluded that SQL was not appropriate to use in
retrieval of statistical data.
3. Implementations of the OPSTAT model
The meeting made a review of NOC's prepared to implement the
operational statistical model when the Internet Draft is submitted.
Below NOC's who were represented at this meeting expressed interest:
Merit (Dale Johnsson)
New Zeeland (Nevil Brownbe)
RIPE NCC (Daniel Karrenberg)
EUnet (Daniel Karrenberg on behalf of Joy Marino)
4. Need of theoretical framework
The meeting discussed the need for a theoretical statistical
framework as current thinking to some extent is based in practical
experiences. Kim Cluffy, SDSC, is writing a PhD thesis on analysis
of wide area network. The output may have a lot in common with the
OPSTAT work. Bellcore has developed models for statistical analysis
of data from packet switch networks which also could show beneficial
for the OPSTAT work. Contact shall be taken with Bellcore to
investigate if their models also could fit in the Internet
architecture.
Session 2, Wednesday March 18.
5. Review of future activities.
At an early stage the OPSTAT group discussed possibilities of using
a client/server based system for retrieval of statistical data. The
meeting agreed that such model would be useful to offload network
equipment from SNMP processing and to enforce access control of
statistical data.
Some similar system may already exist. As examples were mentioned a
system developed by DEC.
6. Review of existing tools.
NASA have tools that currently is configured for 1 minute polling.
The 1 minute polls are stored internally in the program and 15
minutes average and peaks are being stored onto secondary storage.
The NASA statistical tools may be made publically available.
Milo Medin, NASA, expressed the need of differentiating between
statistical tools and monitoring tools. SNMP access is not the same
as access to statistical data. A client/server based system may show
useful in accessing logged data when there is no "public" snmp
access. Another method would be to give access to the tables and
diagrams produced from statistical data.
OARnet have tools that currently does weekly loggings of the data.
The tools are more oriented towards logging of error conditions.
RIPE NCC has tools developed from the ISODE snmp code using gawk
with snmp capabilities. These tools are already adopted to the
OPSTAT thinking and changes to reflect the lastest storage formats
may easily be included. Daniel Karrenberg gave a short presentation
of these tools.
RICE University are using enhanced Merit tools. The tools are
written for AIX and SUN Sparc and could be made publically
available.