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[Idr] BGP-LS alternatives - problems and solutions

Susan Hares <shares@ndzh.com> Wed, 29 June 2022 21:48 UTC

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From: Susan Hares <shares@ndzh.com>
To: "idr@ietf.org" <idr@ietf.org>
Thread-Topic: BGP-LS alternatives - problems and solutions
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Subject: [Idr] BGP-LS alternatives - problems and solutions
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IDR WG continues to strive to create BGP technology that
a) enables the BGP protocols to solve customer problems,
b) enables implementers to create efficient code, and
c) helps to create a stable and manageable routing infrastructure.

In our striving, it is sometimes useful to consider
whether a technology can be improved.
In our last WG adoption call for a BGP-LS feature,
the question was raised whether there were better
alternatives to BGP-LS.

IDR focus is on specific BGP solutions for specific
problems.  Below I've given you a sample format.

If we have enough problem/solutions, we'll hold an interim
for further discussions.

Cheers,  Sue

====================

Problem:  BGP-LS original authors wanted to expose LSR (OSPF and ISIS)
Information via BGP

Use case:  Wide Area networks with multiple IGP domains
connected by BGP

Solution:  draft-li-lsr-droid-00.txt
Benefits:  Allows clear delineation between information
Distribution and routing.  Frees up routing protocols to
Just do routing.

Deficit/Benefit:
1. New protocol must be deployed along with
ISIS, OSPF and BGP.
2. Interactions between BGP-LS

Open issues:  What are potential error conditions for
Protocol interactions (ISIS/OSPF to DROID)?

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