CURRENT_MEETING_REPORT_



Reported by Dino Farinacci/cisco

Minutes of the ISIS for IP Internets Working Group (ISIS)

Standards Progression (Integrated IS-IS)


   o Proposed standard for over 2 years - what should we do?
   o Write an interworking proof.
   o Testing all features.


Radia Presented IS-IS Multicasting


   o The scheme she describes was designed in DECNET Phase V but was
     taken out.

      -  Uses multicast bit in the system-id field of an NSAP. Packet is
         routed to area and then distributed across a multicast tree in
         the area.  (Multicast to whole area).


Radia Presented NLSP Differences From IS-IS


   o Latch on to DR so changes are minimized.
   o Radia proposes a configuration knob to have a priority increase
     after a router becomes DR.


Radia Presented the Multi-Area Router Concept


   o A router has connection to two LANs that are in different areas.
     The router internally is two virtual routers.


Radia Presents How IS-IS Can Implement Multiple Levels of Hierarchy


   o Nested circles can be configured to multiple levels of abstraction.
     This allows IS-IS to scale to larger routing domain sizes.


Discussed the Issue About a Maximum of 256 LSP Fragments


   o Discussed increasing the size of the LSP fragment number from the
     LSPID.

   o Discussion shifted to scaling issues related to injecting externals
     into an IGP.


Range of Metrics in IS-IS


   o Increase metric to 16-bits for internal and 32-bits for external


IS-IS Over NBMA WANs


   o Radia describes NSAP addresses that have E.164 IDPs where you can
     ``get routing for free.''  This can be used for CLNP.

   o For non-CLNP protocols, Radia wants to avoid SMDS multicast because
     of the coordination required with the phone company.

   o Each node knows about a subset of the routers on the WANs.  With
     transitive closure a DR is elected and responsible for knowing all
     nodes on the WAN. The non-DR routers flood LSPs to the DR only and
     the DR floods to the rest of the nodes.


Attendees

Michael Anello           mike@xlnt.com
Ross Callon              rcallon@wellfleet.com
Jeff Carman              tcarman@bnr.ca
John Chang               jrc@uswest.com
Richard Colella          colella@nist.gov
Dino Farinacci           dino@cisco.com
Dennis Ferguson          dennis@ans.net
Eric Fleischman          ericf@act.boeing.com
Eugene Geer              ewg@cc.bellcore.com
Chris Gunner             gunner@dsmail.enet.dec.com
Robert Hinden            hinden@eng.sun.com
Kathy Huber              khuber@bbn.com
David Jacobson           dnjake@vnet.ibm.com
Matthew Jonson           jonson@server.af.mil
Tracy Mallory            tracym@3com.com
David Meyer              meyer@ns.uoregon.edu
Gerry Meyer              gerry@spider.co.uk
Matthew Morrisey         morrisey@wpsp01.hq.aflc.af.mil
Radia Perlman            perlman@dsmail.enet.dec.com
Benny Rodrig             4373580@mcimail.com
Michael Safly            saf@tank1.msfc.nasa.gov
John Scudder             jgs@merit.edu
Kamlesh Tewani           ktt@arch2.att.com
Curtis Villamizar        curtis@ans.net