Re: [Roll] 'S' field in MPL Options

Dario Tedeschi <dat@exegin.com> Thu, 22 November 2012 01:01 UTC

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Date: Wed, 21 Nov 2012 17:00:55 -0800
From: Dario Tedeschi <dat@exegin.com>
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Cc: Roll WG <roll@ietf.org>
Subject: Re: [Roll] 'S' field in MPL Options
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I agree

The 'S' field seems redundant, because an implementation would still 
need to read the Length field so it can make sure the 'S' field wasn't 
lying.

- Dario

On 21/11/2012 10:09 AM, Robert Cragie wrote:
> Referring to 
> http://tools.ietf.org/html/draft-ietf-roll-trickle-mcast-02 section 
> 4.1 - maybe I'm missing something but why is the 'S' field needed? 
> Given that the text for Opt Data Len is wrong (it should say "Length 
> of the Option Data field in octets.  MUST be set to 2, 4, 10 or 18"), 
> surely Opt Data Len is sufficient for working out which Seed IDs are 
> in there?
>
> Robert
>
>
>
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