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Re: [Supa] BGP and SUPA policy

"Susan Hares" <shares@ndzh.com> Mon, 11 May 2015 19:43 UTC

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From: Susan Hares <shares@ndzh.com>
To: 'Juergen Schoenwaelder' <j.schoenwaelder@jacobs-university.de>
References: <024301d08bff$dde57c30$99b07490$@ndzh.com> <20150511154034.GD24192@elstar.local>
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Date: Mon, 11 May 2015 15:43:42 -0400
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Cc: 'John Strassner' <John.sc.Strassner@huawei.com>, supa@ietf.org
Subject: Re: [Supa] BGP and SUPA policy
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Juregen:

The IDR Working group is progressing the documents for the BGP policy based
on a combination of the draft
http://datatracker.ietf.org/doc/draft-shaikh-idr-bgp-model/   and the draft:
http://datatracker.ietf.org/doc/draft-zhdankin-idr-bgp-cfg.   This work has
been ongoing for over 18 months.   A merged draft will be out later this
month. 

The authors have agreed to start with the policy
http://datatracker.ietf.org/doc/draft-shaikh-rtgwg-policy-model, and iterate
from this point. 

This is the base BGP work, and upon this foundation other BGP work will be
expanded.   BGP policy for L2VPN, L3VPN, EVPN is being considered in BESS,
but it depend on the base BGP work plus extensions to cover other BGP
configuration and policy. 

My understanding is that policy is a layered approach going from application
to AS/Network layer, to device layer.   Please see my understanding of the
policy layers below.  I would appreciate any insight you have 

Sue 

Policy layers: 
Application layer policies (intent based) 
AS / Network-wide policy (SUPA policies, IDR SLA policies, L3SM policies  
AS / Network-wide topologies (I2RS client view of topology, ALTO topology) 
Device policy for dynamic abstract topologies (I2RS agent Topology, I2RS
agent RIB, I2RS agent FB-RIBs) 
Device policy for dynamic policy for protocol (ISIS, OSPF, BGP, SFC, SPRING,
MPLS) 
Device policy for dynamic routes (ISIS, OSPF, BGP) 
Device policy for static routes 
Device policy for interfaces 


-----Original Message-----
From: Supa [mailto:supa-bounces@ietf.org] On Behalf Of Juergen Schoenwaelder
Sent: Monday, May 11, 2015 11:41 AM
To: Susan Hares
Cc: 'John Strassner'; supa@ietf.org
Subject: Re: [Supa] BGP and SUPA policy

On Mon, May 11, 2015 at 11:33:44AM -0400, Susan Hares wrote:
> John and others: 
> 
> Could you please describe how SUPA policy interacts with the BGP 
> policy and dynamic BGP policy?

We can try. To avoid misunderstandings, can you tell us which BGP documents
we specifically should look at?

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>

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