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Re: [manet] NHDP: Link quality based on seq-num

Bother, I missed this one, both them and now.

That requires some thought. Thanks to Teco for pointing this out.
This was not the intent of course, I think this got put in in the
various editing to pass reviews and was badly specified.

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Christopher Dearlove
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-----Original Message-----
From: manet-bounces at ietf.org [mailto:manet-bounces at ietf.org] On Behalf Of Henning Rogge
Sent: 09 November 2009 06:28
To: manet at ietf.org
Subject: Re: [manet] NHDP: Link quality based on seq-num

On Mon November 9 2009 02:33:01 Teco Boot wrote:
> In NHDP-11 14.4, it is suggested that a node should
> receive all sequential packet sequence numbers from
> its neighbors.
> I think this is an invalid assumption. A node could
> send packets out of multiple interfaces. Sequence
> numbers are per packet, not (per packet, per interface).
Packet sequence numbers should be interface specific I think. It doesn't make 
sense to make them node specific.

Unfortunately Teco is right, we specified them differently in packetbb:

   o  The <pkt-seq-num> field, if present, contains a sequence number
      that is incremented by 1 for each packet generated by a node.  The
      sequence number after 65535 is 0.  In other words, the sequence
      number "wraps" in the usual way.

Henning Rogge

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Diplom-Informatiker Henning Rogge , Fraunhofer-Institut für
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