Leaf,
OK, I'll get it in the next revision.
cheers,
Ole
On Jan 30, 2012, at 12:38 , Leaf yeh wrote:
> Ole - what's the difference?
>
> I suggested the following text for the readable .
>
> Given:
> End-user IPv6 prefix: 2001:db8:0012:34::/56
> Basic Mapping Rule: {2001:db8:00::/40 (Rule IPv6 prefix),
> 192.0.2.0/24 (Rule IPv4 prefix),
> 16 (Rule EA-bits length)}
> PSID offset: 4 (default value as per section 5.1.3)
>
> We get the IPv4 address, its sharing ratio and port-set:
>
> EA bits offset: 40
> IPv4 suffix bits (p): Length of IPv4 address (32) - IPv4 prefix length
> (24) = 8
> IPv4 address: 192.0.2.18 (0x12)
>
> Sharing ratio: 256 (16 - (32 - 24) = 8. 2^8 = 256)
>
>
> Cheers,
> Leaf
>
>
> -----Original Message-----
> From: Ole Trøan [mailto:[email protected]]
> Sent: Monday, January 30, 2012 6:16 PM
> To: Leaf yeh
> Cc: [email protected]; [email protected] team
> Subject: Re: More changes to revision 03.
>
> Leaf,
>
> > Again C&Qs on the examples in the newly updated candidate of MAP-03:
> >
> > A. Section 5.2 - Given:
> > End-user IPv6 prefix: 2001:db8:0012:34::/56
> > Basic Mapping Rule: {2001:db8:00::/40 (Rule IPv6 prefix),
> > 192.0.2.0/24 (Rule IPv4 prefix),
> > 16 (Rule EA-bits length)}
> > Sharing ratio: 256 (16 - (32 - 24) = 8. 2^8 = 256)
> > PSID offset: 4
> >
> > We get IPv4 address and port-set:
> > EA bits offset: 40
> > IPv4 suffix bits (p): Length of IPv4 address (32) -
> > IPv4 prefix length (24) = 8
> > ….
> >
> > C1. The ‘End-user IPv6 prefix’ shall be express as
> > ‘2001:db8:0012:3400::/56’ as per the section 2.3 of RFC4291;
>
> fixed.
>
> > C2. The sharing ratio sounds a calculated result, not a ‘given’ condition;
>
> what's the difference?
>
>
> >
> > B. Section 5.3 - Given:
> > IPv4 destination address: 192.0.2.18
> > IPv4 destination port: 9030
> > Forwarding Mapping Rule: {2001:db8:00::/40 (Rule IPv6 prefix),
> > 192.0.2.0/24 (Rule IPv4 prefix),
> > 16 (Rule EA-bits length)}
> >
> > We get IPv6 address:
> > IPv4 suffix bits (p): 32 - 24 = 8 (18 (0x12))
> > PSID length: 8
> > PSID: 0x34 (9030 (0x2346))
> > EA bits: 0x1234
> > MAP IPv6 address: 2001:db8:0012:3400:00c0:0002:1200:3400
> >
> > C3. I suppose the default ‘PSID offset: 4’ seems need to express in the
> > ‘given’ conditions;
>
> OK
>
> > Q1. Have the draft stated the ‘u’ bits in the Interface-ID should be 0x00?
>
> it states that it is based on 6052. I think that should be sufficient.
>
> cheers,
> Ole
>
>
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