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- Editor's note: These minutes have not been edited.
-
- From: Gary Scott Malkin <gmalkin@xylogics.com>
- Date: Wed, 27 Jul 1994 16:39:19 -0400
- Subject: RIPv2 minutes
-
- CURRENT_MEETING_REPORT_
-
- Reported by Gary Malkin/Xylogics, Inc.
-
- Minutes of the RIP Version II Working Group (RIPV2)
-
-
- Status Update
-
-
- Chairpersons Gary Scott Malkin / gmalkin@xylogics.com
-
- Mailing List ietf-rip(-request)@xylogics.com
- Archives xylogics.com:gmalkin/rip/rip-arc
-
- Date of meeting Toronto IETF / July 26, 1994
-
- Progress Approved RIP-2 protocol and MIB I-Ds for submission
- for consideration as Draft Standards. Approved
- Protocol Analysis and Applicability Statement I-Ds
- for consideration as Informational RFCs.
-
- Agenda
-
- 1 - Review the Protocol Analysis I-D
- 2 - Review the Applicability Statement I-D
- 3 - Discussion of "infinity = 15" problem
- 4 - Discussion of Next Hop field usage
- 5 - Advancing RIP-2 and Demand Circuit RIP
- 6 - Any other issues
- 7 - Summary of decisions and actions
-
- The Protocol Analysis and Applicability Statement have been accepted as
- written. Pending a modification to the MIB (discussed below), the set
- of RIP-2 I-Ds will be submitted for Last Call.
-
- Jeffrey Honig reported a problem to the mailing list detailing instances
- in which a router may discard a valid route with a metric of 15. RFC
- 1058 specifies that the cost of the interface over which an update was
- received (usually 1) is added to the metric advertised in the update.
- If that metric is less than Infinity (16), the route is added to the
- routing table; otherwise, the route is ignored. The problem is that some
- implementations accept the advertised metric and add the cost of the
- outgoing interface to the metric, eliminating routes with a calculated
- metric greater than Infinity. The results of the discussion were that
- this is not a serious enough problem to warrent further specification in
- the RIP-2 Protocol specification. There are two reasons for this
- determination. First, there have been many sites running with this
- problem for a very long time and it has not caused any routing problems.
- At worst, you reduce your network diameter by 1; at best you increase it
- by one. Second, a network with a diameter of 15 should probably not be
- running RIP in the first place.
-
- The use of the Next Hop field, as described in the Applicability Statement,
- was thoroughly discussed. The objective was to determine that consistant
- use of the Next Hop field would not produce routing loops of instabilities.
- There was some concern over why one would bother to use the field in this
- way (basically, it's a response to users' requests), but there was no
- determination that the algorithm was detrimental in any way.
-
- The Demand Circuit RIP RFC is currently a Proposed Standard. It still
- has some time to wait before moving to Draft Standard, so no action was
- required at this time.
-
- Fred Baker introduced a proposal to add MD5 security to RIP-2 as an
- extension to the existing password mechanism. It is essentially the
- same proposal adopted by OSPF. It was decided not to burden RIP-2's
- advancement in the standards track with the addition of the new security
- measures, so Fred will be producing an Internet Draft which will be
- submitted for consideration as a Proposed Standard. This document will
- move independently through the standards track. A minor change to the
- RIP-2 MIB needs to be made to include an MD5 authorization type. This
- change will be added to the MIB I-D immediately. Since it is simply an
- additional value in an existing field, it does not affect the MIB's
- advancement in the standards track.
-