Re: [Softwires] ietf-softwire: IPv4 + PSID primary key for lw4over6 binding

Andy Wingo <wingo@igalia.com> Wed, 13 July 2016 14:49 UTC

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From: Andy Wingo <wingo@igalia.com>
To: <mohamed.boucadair@orange.com>
References: <877fcrcfl4.fsf@igalia.com> <787AE7BB302AE849A7480A190F8B933008DE5EB3@OPEXCLILMA3.corporate.adroot.infra.ftgroup> <87oa63auoe.fsf@igalia.com> <787AE7BB302AE849A7480A190F8B933008DE5F5E@OPEXCLILMA3.corporate.adroot.infra.ftgroup>
Date: Wed, 13 Jul 2016 16:49:25 +0200
In-Reply-To: <787AE7BB302AE849A7480A190F8B933008DE5F5E@OPEXCLILMA3.corporate.adroot.infra.ftgroup> (mohamed boucadair's message of "Tue, 12 Jul 2016 13:07:43 +0000")
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Cc: "softwires@ietf.org" <softwires@ietf.org>
Subject: Re: [Softwires] ietf-softwire: IPv4 + PSID primary key for lw4over6 binding
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Hi Monhamed,

On Tue 12 Jul 2016 15:07, <mohamed.boucadair@orange.com> writes:

>>               list binding-entry {
>>                 key "binding-ipv6info";
>>                 description "binding entry";
>>                 uses binding-entry;
>>               }
>> 
>> was that "binding-ipv6info" uniquely identifies the B4 (because it's a
>> key within the binding-entry list).  Is that not the case?
>
> [Med] "binding-ipv6info" uniquely identifies an entry, ** not ** a
> B4. The B4 is identified by applying, for example, a subscriber-mask
> (https://tools.ietf.org/html/rfc7785#section-3). That is, a filter on
> all "binding-ipv6info" that belong, e.g., to the same /56.

I see, thank you.  If I understand you correctly, you are saying that to
have multiple softwires that a B4 should terminate those softwires with
distinct IPv6 addresses.  From the AFTR perspective this restriction is
not neccessary but if you find it useful, sure.

Andy