Re: Small question about draft-proto v10 - update ack

[Matthijs Mekking <matthijs@NLnetLabs.nl>]

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Good catch. Probably, this must be:

> o  If I2-SENT, then send I2 and proceed to process the message.
>
> o  If I2BIS-SENT, then send I2BIS and proceed to process the message.

In order to let the peer know we *need* a R2 message.

- - Matthijs

Sébastien Barré wrote:
> Hi,
> 
> I have almost finished implementing support of locator updates, and have
> now a small question relative to section 10.5 (receiving update acks).
> 
> I find strange the following lines :
> ---
> o  If I2-SENT, then send R2 and proceed to process the message.
> 
> o  If I2BIS-SENT, then send R2 and proceed to process the message.
> ---
> Why do we need to send an R2 if we are in I2-SENT state ?
> Moreover, if we send an R2, the peer will infer that we are in
> ESTABLISHED state, and thus will never send its locators !
> 
> In section 10.4 (receiving update requests), something similar is
> written, but an I2 must be sent.
> I am not sure of how useful it is, but I implemented that, since it is
> in the draft and it is not harmful anyway.
> But sending an R2 seems strange.
> 
> Am I missing something ?
> 
> Thanks,
> 
> Sébastien.
> 

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