Re: [PWE3] draft-ietf-pwe3-iccp interaction with draft-pw-redundancy-bit

Luca Martini <lmartini@cisco.com> Wed, 20 June 2012 17:32 UTC

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Date: Wed, 20 Jun 2012 11:31:37 -0600
From: Luca Martini <lmartini@cisco.com>
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To: Samer Salam <ssalam@cisco.com>
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Subject: Re: [PWE3] draft-ietf-pwe3-iccp interaction with draft-pw-redundancy-bit
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On 03/15/12 12:25, Samer Salam wrote:
> Hi Daniel,
>
> The ICCP draft does assume the use of the pw-redundancy-bit draft. 
> Section 9.1.3 describes two modes of operation (depending on 
> configuration):
>
> - When an external AC redundancy mechanism is in use, and is being 
> synchronized among the PEs via ICCP. In this mode, PW state is not 
> synchronized via ICCP and the Independent Mode of operation is used 
> for PW state signaling. This guarantees that the AC and PW states are 
> always in sync for a given PE (to avoid deadlock).
>
> - When an external AC redundancy mechanism is not in use, then PW 
> state is synchronized via ICCP. In this mode, either the Independent 
> mode or the Master/Slave mode could be used for PW state signaling.
>
> We will add clarifications to that effect in a future revision.
>
Ok, I added the reference.
Luca

> Regards,
> Samer
>
>
> On 12-03-15 4:38 AM, "Daniel Cohn" <DanielC@orckit.com> wrote:
>
>     Hi draft-ietf-pwe3-iccp authors and list at large,
>
>     Is there a reason why the ICCP draft does not explicit reference
>     the pw redundancy draft? It does mention active/standby signaling
>     for the PWs, so implicitly it seems to assume that the other
>     endpoint is implementing draft-pw-redundancy-bit, but in that case
>     some details are missing such as which pw redundancy mode should
>     be used (e.g. master/slave), how PW precedence should be
>     configured, etc.
>
>     Is this something you plan to add in future revisions?
>
>     Thanks,
>
>     Daniel
>
>
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