Re: [sidr] [Idr] AS_SET depreciation (RFC6472) and BGP multipath

The issue is SIDR can not aggregate multiple paths.

Solutions I can think of:
1. Aggregate the signatures of the paths being aggregated.
2. Don't aggregate, but send both paths. 

Should SIDR work on path aggregation?
Are there other possibilities?

--
Jakob Heitz.

-----Original Message-----
From: Robert Raszuk [mailto:robert@raszuk.net] 
Sent: Wednesday, March 28, 2012 7:32 AM
To: Jakob Heitz
Cc: Paul Jakma; idr@ietf.org List; Tony Li; sidr wg list
Subject: Re: [Idr] [sidr] AS_SET depreciation (RFC6472) and BGP multipath

Jakob,

The issue is also about intra-as ibgp multipath not inter-as one. Observe that data usually flows into opposite direction then routing ;)

Cheers,
R.

On 28 mar 2012, at 16:11, Jakob Heitz <jakob.heitz@ericsson.com> wrote:

> I don't know. I'm just throwing ideas around.
> However, it appears that inter AS multipath
> has a lot of problems.
> 
> --
> Jakob Heitz.
> 
> -----Original Message-----
> From: Paul Jakma [mailto:paul@jakma.org] 
> Sent: Wednesday, March 28, 2012 6:10 AM
> To: Jakob Heitz
> Cc: robert@raszuk.net; Tony Li; idr@ietf.org List; sidr wg list
> Subject: Re: [sidr] [Idr] AS_SET depreciation (RFC6472) and BGP multipath
> 
> On Tue, 27 Mar 2012, Jakob Heitz wrote:
> 
>> Alternatively, send both routes and let the end user decide to use them 
>> in a multipath. Can you say ebgp add-path?
> 
> Where's the document to describe how to do multi-pathing using add-path? 
> E.g. what should happen when there is a non-add-path capable neighbour?
> 
> regards,
> -- 
> Paul Jakma  paul@jakma.org  twitter: @pjakma  PGP: 64A2FF6A
> Fortune:
> The Second Law of Thermodynamics:
>    If you think things are in a mess now, just wait!
>        -- Jim Warner
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