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Re: [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01

Eric C Rosen <erosen@juniper.net> Mon, 09 November 2015 16:02 UTC

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To: "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>
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From: Eric C Rosen <erosen@juniper.net>
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Cc: idr wg <idr@ietf.org>, SPRING WG <spring@ietf.org>
Subject: Re: [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01
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On 11/6/2015 8:18 AM, Stefano Previdi (sprevidi) wrote:
> A prefix may have a shorter mask than 32 (or 128) and still be ok for
> the Originator SRGB to be there.

Stefano,

On further thought, I wonder if I misunderstood the point of your 
question.  If all the addresses falling under a given prefix are 
loopback addresses of the same node, then the same SRGB might apply to 
all of them.  In that case, it might make sense to have a shorter prefix 
but still advertise the Originator-SRGB.  Is that what you're thinking? 
  But on the other hand, if a node has multiple loopback addresses, it 
probably won't want the same SID assigned to all of them.

Eric

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