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Internet Info 1997 December
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91nov
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area.routing.91nov.txt
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Routing Area
Director(s):
o Bob Hinden: hinden@bbn.com
Area Summary reported by Bob Hinden/BBN
There continued to be a lot of routing related activities at the Santa
Fe IETF. Two talks were given on inter-domain routing. One which
represents the work of the IDPR Working Group titled ``Inter-Domain
Policy Routing'' was presented by Martha Steenstrup. The other talk
described an approach which combines features of IETF Inter-Domain
Policy Routing Protocol (IDPR) and the ISO Inter-Domain Routing Protocol
(IDRP). This talk was titled ``A Unified Approach to Inter-Domain
Routing'' was presented by Deborah Estrin.
Seven routing working groups met and there were three routing related
BOF's. Their reports are as follows:
Border Gateway (bgp), Chair - Yakov Rekhter
The Group discussed subnet mask support in BGP. Issues of advertising
subnet and supernet masks between autonomous systems were discussed.
The discussion evolved into the need to develop an overall internet
routing architecture. This lead into the formation of a group which
evolved into the ROAD Group.
The BGP Group discussed the Internet Draft of describing OSPF and BGP
interactions, with the OSPF Working Group.
IP Over Large Public Data Networks Working Group, (iplpdn)
Chair - George Clapp
The IPLPDN Group agreed on bridging formats and protocol identification
on IEEE 802.6 LAN's. The Group will forward its recommendations to the
IEEE 802.6 committee. This was done in response to a request from
802.6.
Protocol identification and encapsulation for circuit ISDN (B channels)
were discussed with members of the Point-to-Point Protocol Extensions
Working Group. The Group agreed to use the XID procedure to determine
the encapsulation format. A code point will be obtained to indicate PPP
in ISDN. The Group will document this in an Internet Draft.
An Internet Draft updating IP over X.25 was discussed. The comments
will be incorporated in a new version of the document.
There was a long discussion on how routing should work over large public
data networks. Proposals for ``Directed ARP'' and ``Short Cut'' routing
were discussed. One of the major issues is whether there will be
different IP network addresses on each public network or if there will
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be one (i.e., class A) network number for each network. In the former
case should traffic be required to go through a router.
The Group decided to recommend to the IESG that the ``IP over SMDS'' RFC
be advanced to Draft Standard.
IP Routing for Wireless/Mobile Hosts (moblhost), Chair - Steve Deering
The Group met and was well attended. Dan Duchamp gave a presentation on
the work done at Colombia University to support roaming wireless IP
Hosts. Ken Carlberg described his work at SAIC on connectionless ISO
CLNP support for mobile end systems. Steve Deering reported on the
current work of the IEEE 802.11 Wireless LAN committee.
The attendees agreed there was enough interest to form a working group.
Steve Deering will Chair the Group and write a Charter.
IS-IS for IP Internets (isis), Chair - Ross Callon
The Group met and updated the RFC for Dual IS-IS to be compatible with
the current international standard for IS-IS. An Internet Draft
reflecting these changes will be produced soon. The Group also
discussed the IS-IS MIB. An Internet Draft is now available.
Work was started on BGP-ISIS interactions. The approach taken is
similar to what has been done with OSPF and BGP.
Inter Domain Policy Routing (idpr), Chair - Martha Steenstrup
The Group reviewed the current Internet Drafts describing the IDPR
protocol. They also discussed how IDPR would be used in the Internet
and how it interacts with existing routing protocols. The Group also
reviewed the status of the IDPR ``gated'' implementation.
The Group met jointly with the Router Requirements Working Group. The
goal was to make sure that IDPR was not inconsistent with the router
requirements specification. The result of the discussion was that there
were not any inconsistencies.
Multicast Extensions to OSPF (mospf), Chair - Steve Deering
The Group completed reviewing the first draft of MOSPF specification
(60+ pages). The main concerns raised were in the area of
inter-autonomous system interactions and co-existence of multiple
multicast routing protocols in the same router.
An implementation of MOSPF is underway at Proteon and a ``gated''
implementation is planned by Cornell.
New Internet Routing and Addressing Architecture (nimrod),
Chair - Noel Chiappa
The BOF discussed Noel Chiappa's proposal for a new internet routing and
addressing architecture. The first half of the meeting was spent
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reviewing the proposal and the last half was spent getting a better
understanding of the overall dimensions of the architecture. There was
general interest in forming a working group.
Open Shortest Path First IGP (ospf), Chair - John Moy
The Group discussed the ``Virtual Link'' problem found during
multi-vendor OSPF interoperability testing in Foxborough, MA. A backward
compatible fix has been developed. The OSPF specification is being
updated to reflect the fix.
The Group reviewed a set of changes to the OSPF MIB and the new OSPF
Trap MIB. The later will be published as an Internet Draft.
Work continued on the proposal for an new OSPF option ``Not So Stubby
Area''. This option will provide for improved support for RIP clouds
attached to OSPF domains and help with the transition of domains from
RIP to OSPF. This option is now fully fleshed out.
The Group also discussed the possibility of defining a reduced subset of
OSPF for autonomous systems not needing the full functionality, such as
stub domains.
RIP Version 2 BOF (ripv2), Chair - Gary Malkin
A BOF was held to see if there was sufficient interest to form a working
group to develop a new version of RIP. Features to be added to the
protocol included:
o Subnet Masks
o Authentication
o Autonomous System Numbers
o MTU & Link Speed indications
The attendees agreed that a working group should be formed.
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