Hi Acee,

Let me clarify what I meant.

The DR will use the Link-LSAs to produce the intra-area-prefix-LSA for the 
transit networks. However, as long as we omit the global address from the 
intra-area-prefix-LSA, the global address won't be installed in the routing 
table, no matter if the global address has been advertised in the Link-LSAs or 
not. 

In other words, for prefix-hiding, we don't need to omit the global address in 
the Link-LSAs.

Yi



On Feb 22, 2012, at 8:53 AM, Acee Lindem wrote:

> Hi Yi,
> The global addresses do need to be suppressed from OSPFv3 Link-LSAs since 
> they are used by the DR to produce the Intra-Area-Prefix-LSA corresponding to 
> the transit network 
> Thanks,
> Acee
> 
> On Feb 22, 2012, at 8:21 AM, Yi Yang wrote:
> 
> > Hi Rajesh,
> >
> > Thanks for your comments. I agree that prefix-hiding must not be configured 
> > on VL interface. But link-LSAs are not being used in SPF calculations.
> >
> > Yi
> >
> >
> >
> > On Feb 20, 2012, at 10:22 PM, Rajesh wrote:
> >
> >> Dear Acee,
> >>
> >> Some more thoughts.
> >>
> >> 1) In section 3 of this draft " Hiding IPv6 Transit-only Networks in 
> >> OSPFv3"
> >> We can also mention about LINK LSA. If the prefix hiding is configured on a
> >> interface, then no need to mention global prefixes in Link LSA.
> >>
> >> 2) For prefix hiding configuration option, may be we need to support OSPF
> >> and OSPFv3 MIBs as well.
> >>
> >> Thanks
> >> Rajesh
> >>
> >>
> >> -----Original Message-----
> >> From: Acee Lindem [mailto:[email protected]]
> >> Sent: Monday, February 20, 2012 7:49 PM
> >> To: Rajesh
> >> Cc: OSPF List
> >> Subject: Re: [OSPF] OSPF WG Last Call for "Hiding Transit-only Networks in
> >> OSPF " - <draft-ietf-ospf-prefix-hiding-02.txt>
> >>
> >> Hi Rajesh,
> >>
> >> On Feb 20, 2012, at 12:55 AM, Rajesh wrote:
> >>
> >>> Dear Acee,
> >>>
> >>> We can add one statement in section 3 of this draft [which is for OSPFv3]
> >>> "LA-bit prefix we advertise in intra area prefix LSA for Virtual LINK IPv6
> >>> address discovery, must not be taken from the interface where the prefix
> >>> hiding is configured"
> >>
> >> It is somewhat obvious that you wouldn't choose an address that is not
> >> advertised. However, I guess it wouldn't hurt to add that the RFC 5340,
> >> Section 4.4.3.9.  Intra-Area-Prefix-LSAs, selection an IPv6 address to
> >> terminate virtual links will be modified to exclude interfaces with the
> >> prefix hiding configured.
> >>
> >> Thanks,
> >> Acee
> >>
> >>
> >>
> >>>
> >>> Please check.
> >>>
> >>> Thanks & Regards
> >>> Rajesh
> >>>
> >>>
> >>>
> >>> -----Original Message-----
> >>> From: [email protected] [mailto:[email protected]] On Behalf Of
> >> Acee
> >>> Lindem
> >>> Sent: Wednesday, February 08, 2012 10:37 PM
> >>> Cc: OSPF List
> >>> Subject: [OSPF] OSPF WG Last Call for "Hiding Transit-only Networks in
> >> OSPF
> >>> " - <draft-ietf-ospf-prefix-hiding-02.txt>
> >>>
> >>> As I have heard no objections, I'm beginning the 2 week OSPF Working Group
> >>> last call for draft-ietf-ospf-prefix-hiding-02.txt.
> >>> Please review the draft and post your last call comments prior to 12:00 AM
> >>> PDT on February 23nd, 2012.
> >>> Here is a URL for your convenience:
> >>>
> >>> http://www.ietf.org/id/draft-ietf-ospf-prefix-hiding-02.txt
> >>>
> >>> Thanks,
> >>> Acee
> >>>
> >>> On Jan 26, 2012, at 11:19 AM, Acee Lindem wrote:
> >>>
> >>>> As WG co-chair, I have reviewed this document and believe it is ready for
> >>> OSPF WG last call. Any other opinions?
> >>>> There is at least one implementation. Here is a URL for you convenience:
> >>>>
> >>>> http://www.ietf.org/id/draft-ietf-ospf-prefix-hiding-01.txt
> >>>>
> >>>> There is an IPR disclosure on this draft:
> >>>>
> >>>> http://datatracker.ietf.org/ipr/1423/
> >>>>
> >>>> I will start WG last call next week if I don't hear any objections.
> >>>>
> >>>> Thanks,
> >>>> Acee
> >>>>
> >>>>
> >>>> _______________________________________________
> >>>> OSPF mailing list
> >>>> [email protected]
> >>>> https://www.ietf.org/mailman/listinfo/ospf
> >>>
> >>> _______________________________________________
> >>> OSPF mailing list
> >>> [email protected]
> >>> https://www.ietf.org/mailman/listinfo/ospf
> >>>
> >>
> >> _______________________________________________
> >> OSPF mailing list
> >> [email protected]
> >> https://www.ietf.org/mailman/listinfo/ospf
> >
> 
> 

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