[Idr] draft-van-beijnum-idr-iac-00

Iljitsch van Beijnum <iljitsch@muada.com> Mon, 18 February 2008 11:53 UTC

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From: Iljitsch van Beijnum <iljitsch@muada.com>
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Subject: [Idr] draft-van-beijnum-idr-iac-00
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A while ago I had a short discussion with Robert Raszuk about (the  
lack of) an inter-AS metric, and he asked me to write my idea up in a  
draft. I did. Let me know what you think.


Begin forwarded message:

> From: IETF I-D Submission Tool <idsubmission@ietf.org>
> Date: 18 februari 2008 12:39:44 GMT+01:00
> To: iljitsch@muada.com
> Subject: New Version Notification for draft-van-beijnum-idr-iac-00
> A new version of I-D, draft-van-beijnum-idr-iac-00.txt has been  
> successfuly submitted by Iljitsch van Beijnum and posted to the IETF  
> repository.
> Filename:	 draft-van-beijnum-idr-iac
> Revision:	 00
> Title:		 A BGP Inter-AS Cost Attribute
> Creation_date:	 2008-02-18
> WG ID:		 Independent Submission
> Number_of_pages: 6
> Abstract:
> Although BGP implementations have extensive path selection
> algorithms, in practice operators have trouble performing
> satisfactory traffic engineering of incoming traffic based on BGP
> attributes that are taken into account in the path selection
> algorithm alone.  For this reason, many ASes deaggregate their
> address range(s) into smaller blocks and announce these blocks
> differently to different neighboring ASes in order to arrive at the
> desired traffic flow.  This practice contributes to the growth of the
> global routing table, which drives up capital expenditures for
> networks engaging in inter-domain routing.  This memo introduces a
> new inter-domain metric that supports finer-grained traffic
> engineering than current BGP attributes, most notably, the AS path.

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