home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Internet Info 1994 March
/
Internet Info CD-ROM (Walnut Creek) (March 1994).iso
/
inet
/
ietf
/
isis
/
isis-minutes-90feb.txt
< prev
next >
Wrap
Text File
|
1993-02-17
|
6KB
|
135 lines
CURRENT_MEETING_REPORT_
MINUTES
The meeting was convened by Steven Willis. An attendance list will be
published with the Proceedings of the IETF.
Dave Oran updated the status of the ANSI IS-IS document. It had now
reached Draft proposal stage and had been assigned the ISO number 10589.
He discussed some of the recent modifications:
o The LOC-AREA portion of the address was now gone.
o Partition repair is now optional.
o Two multicast addresses had been assigned for level 1 and level 2
intermediate systems.
The working group addressed a number of issues outstanding from the
previous meeting in Ann Arbor. In particular :
o Someone brought up the point that it may be limiting for an IP
router to only encapsulate over 802.3. (i.e., doing IP IS-IS over
HDLC). Do we want to consider changing encapsulation from 802.3 to
IP to allow for the additional link-layer flexibility?
o The IP L1 partition repair is a bit flaky. Do we want to just say
that this is not allowed for IP or do we want to fix it? (Not a
straight-forward task).
o Dave Oran has corrections for IP routing exchange authentication.
We didn't resolve what to do with an authentication mismatch. Drop
the packet and what management information?
o Presently, the Integrated IP spec says that IP external links can
just be generated by L2 routers. This limits the topology (it
cannot have a pocket of rip routers anywhere in an area that aren't
connected to a L2 router) and will make it hard to transition from
another IGP to IP IS-IS. The suggestion was made to be able to
generate IP external information at L1 - this is a good idea but
potentially creates a problem when AS border gateways are at L1 but
are in different areas. Since AS external information is not
flooded into areas, L1 routers in different areas will not hear
another AS's border router's external information - thus t, Cris
BGP won't work in the transit AS case - We were not sure how this
will affect other EGPs.
o There was some debate about the merits of forwarding based upon
default metric if there is no path using desired metric.
Forwarding as we currently allow may result in violation of policy.
Dropping packet isn't friendly. No conclusions. Tony Lauck
pointed out there were three solutions to handling datagrams with
TOS not supported by an intermediate system :
1. Let the packet disappear into a black hole
1
2. Map the TOS into another TOS supported by the IS
3. Drop the packet and generate an ICMP message back to source.
Solution 3 appeared to be the best answer, but it was unclear as
what the ICMP type code should be.
o We discussed the possibility of running a partial Dykstra if only
the leaves of the tree had changed. Dave Oran pointed out that
this was an implementation issue and suggested that an
Implementor's Hints Annex be added to the IS-IS specification to
address these issues.
ATTENDEES
Almquist, Philip almquist@jessica.stanford.edu
Bagnall, Doug bagnall_d@apollo.hp.com
Baker, Fred baker@vitalink.com
Bare, Ballard bare%hprnd@hplabs.hp.com
Brunner, Ted tob@thumper.bellcore.com
Bryant, Stewart bryant@janus.enet.dec.com
Cerf, Vint vcerf@nri.reston.va.us
Chapin, Lyman lyman-chapin@dgc.mceo.dgcom
Chatterjee, Samir samir@nynexst.com
Colella, Richard colella@osi3.ncsl.nist.gov
Deboo, Farokh sun!iruucp!ntrlink!fjd
Farinacci, Dino dino@bridge2.3com.com
Ferguson, Dennis dennis@gw.ccie.utoronto.ca
Froyd, Stan sfroyd@salt.acc.com
Gan, Der-Hwa no email
Goguely, Herve rvg@bridge2.3com.com
Hagens, Rob hagens@cs.wisc.edu
Hain, Tony hain@nmfecc.arpa
Heinanen, Juha jh@funet.fi
Hytry, Tom tlh@iwlcs.att.com
Karels, Mike karels@berkeley.edu
Katz, Dave dkatz@merit.edu
Kellen, Daniel kellen@eglin.af.mil
Lauck, Tony lauck@dsmail.dec.com
Little, Mike little@saic.com
Marcinkevicz, Mike mdm@gumby.dsd.trw.com
Minshall, Greg minshall@kinetics.kinetics.com
Mogul, Jeff mogul@decwrl.dec.com
Morris, Dennis morrisd@imo-uvax.dca.mil
O'Leary, Dave oleary@umd5.umd.edu
Oran, David oran@oran.dec.com
Perlman, Radia no email
Reilly, Michael reilly@nsl.dec.com
Rekhter, Yakov yakov@ibm.com
Senum, Steve sjs@network.com
Sheridan, Jim jsherida@ibm.com
Sklower, Keith sklower@okeeffe.berkeley.edu
Solensky, Frank solensky@interlan.interlan.com
2
Staw, Tony staw@marvin.enet.dec.com
Sturtevant, Allen sturtevant@ccc.nmfecc.gov
Tsuchiya, Paul tsuchiya@thumper.bellcore.com
Willis, Steven swillis@wellfleet.com
Winkler, Linda b32357@anlvm.ctd.anl.gov
Woodburn, Robert woody@saic.com
3