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Re: [Dime] Conclusion for Sequence Numbers - was Re: OVLI: comments to 4.3

Jouni Korhonen <jouni.nospam@gmail.com> Tue, 10 December 2013 21:48 UTC

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From: Jouni Korhonen <jouni.nospam@gmail.com>
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Date: Tue, 10 Dec 2013 23:48:11 +0200
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To: Ben Campbell <ben@nostrum.com>
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Subject: Re: [Dime] Conclusion for Sequence Numbers - was Re: OVLI: comments to 4.3
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Ben,

On Dec 10, 2013, at 11:36 PM, Ben Campbell <ben@nostrum.com> wrote:

> 
> On Dec 10, 2013, at 3:31 PM, Jouni Korhonen <jouni.nospam@gmail.com> wrote:
> 
>>> Jouni,
>>> 
>>> 1. I find the texts
>>> a) "The sequence number ... does not need to be monotonically increasing"
>>> and 
>> 
>> Means the delta from old-seqno to new-seqno can be any non-negative integer
>> (within the given limits) not something fixed step/delta (like +1). As long as
>> "new-seqno >= old-seqno" holds we are fine.
> 
> My understanding is that "new-seqno >= old-seqno" is the _definition_ of monotonically increasing.
> 
> But don't we want "new-seqno > old-seqno", that is, increase by a positive integer? (Assuming we are talking about a new OLR, not merely a copy of an old one.)
> 

Zero delta is there since, as far as I understood, replaying an
old (i.e. current) OLR or supported feature was desired functionality.

- jouni

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