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           [email protected]
Ross Callon              [email protected]
Jeff Carman              [email protected]
John Chang               [email protected]
Richard Colella          [email protected]
Dino Farinacci           [email protected]
Dennis Ferguson          [email protected]
Eric Fleischman          [email protected]
Eugene Geer              [email protected]
Chris Gunner             [email protected]
Robert Hinden            [email protected]
Kathy Huber              [email protected]
David Jacobson           [email protected]
Matthew Jonson           [email protected]
Tracy Mallory            [email protected]
David Meyer              [email protected]
Gerry Meyer              [email protected]
Matthew Morrisey         [email protected]
Radia Perlman            [email protected]
Benny Rodrig             [email protected]
Michael Safly            [email protected]
John Scudder             [email protected]
Kamlesh Tewani           [email protected]
Curtis Villamizar        [email protected]