Satoru - Let's think that a CE provisioned with following BMR comes from MAP
DHCPv6 options.
BMR:
o Rule-ipv6-prefix : {exact matched with CE's delegated prefix}
o Rule-ipv4-prefix : x.x.x.x/32
o EA-length : 0
o Port-param option : {PSID/length}
This BMR could be a LW46 provisioning means.
If the intention is only for the independence provision of IPv4 address
assignment and IPv6 prefix delegation, I guess we could also think the
alternative scenario that CE provisioned with following BMR comes from MAP
DHCPv6 options.
BMR:
o Rule-ipv6-prefix : the length of Rule-ipv6-prefix + PSID length = the
length of CE's IPv6 delegated prefix
o Rule-ipv4-prefix : x.x.x.x/32
o EA-length : PSID length
That means PSID still be embedded in the CE's IPv6 delegated prefix.
Best Regards,
Leaf
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf
Of Satoru Matsushima
Sent: Monday, June 25, 2012 5:05 PM
To: Peng Wu
Cc: [email protected]; Yong Cui
Subject: Re: [Softwires] [Softwire] draft-ietf-softwire-map-00 does NOT reflect
the consensus from the WG
Hi Peng,
On 2012/06/25, at 17:50, Peng Wu wrote:
>> Hmm, I've read 'draft-cui-softwire-b4-translated-ds-lite' as you called
>> 'lightweight 4over6'. LW46 for short, it looks me that MAP just provides
>> LW46 a provisioning means which would be described in the section 5, or
>> appendix section because following text described in section 5:
>>
>> "Other optional alternatives to retrieve the public address and port-
>> set also exist. The specific protocol extensions are out of scope in
>> this document, however some alternatives are mentioned in the Appendix
>> section."
> Let me take a step further following your direction:
> You are saying MAP is a provisioning mean in lw4over6. Then, what exactly?
> With IPv4-IPv6 addressing independency, you proivde an IPv4 address
> and port set, within another DHCPv6 option?
> No BMR, No FMR, No embedding address. Look at what's left. how is this
> even similar to MAP?
Let's think that a CE provisioned with following BMR comes from MAP DHCPv6
options.
BMR:
o Rule-ipv6-prefix : {exact matched with CE's delegated prefix}
o Rule-ipv4-prefix : x.x.x.x/32
o EA-length : 0
o Port-param option : {PSID/length}
This BMR could be a LW46 provisioning means.
cheers,
--satoru
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