Also the previous quote from RFC 3101 doesn't really apply here -- We don't have two NSSA ASBRs here injecting type-7 LSAs, we only have one. As Kim pointed out in another email, the RID of that NSSA ASBR (R6) is always the same. From what you guys have said regarding your experiments it seems things are based on highest IP address BUT I'd have to lab it up again myself to verify that since in my experiment the metric was tilted from the getgo.
On Wed, Nov 18, 2009 at 6:12 AM, Joe Astorino <[email protected]>wrote: > Hey guys, > > I wanted to clear up a few things regarding the blog and some of the > questions. We have TWO type-7 NSSA LSAs coming into R5 originally: One > with forwarding-address 6.6.6.6 and the other 65.65.65.6. The question is > how do we select which one to set in the type-5 LSA ? In the blog I believe > I incorrectly stated it was simply due to the lowest IP address. Some of > you called me on that saying you saw it was the highest ip address in your > experiments and I believe you are correct. > > The reason I was seeing the lowest IP address was because the metric from > R5 to the ASBR (R6) in my setup was always tilted. The link to 56.56.56.6 > started with a metric of 1 whereas the link to 65.65.65.6 started with a > metric of 10. THAT is the reason the 6.6.6.6 was chosen. If the metric to > the ASBR was indeed equal, I believe we would see the reverse. Thanks for > all the interest and EXCELLENT questions. Sorry if I confused anybody, I > think it was about 5:00 AM and I was running about 70 hours that week and > running a class :P > > Keep studying hard!!! > > P.S. I will copy this to the blog as a comment > > On Tue, Nov 17, 2009 at 1:35 PM, <[email protected]> wrote: > >> I am still digesting that blog. The issues you bring up along with the >> poster on the blog are relevant to what I'm seeing as well. >> >> Waiting to hear more ;) >> -nick >> Sent from my Verizon Wireless BlackBerry >> >> -----Original Message----- >> From: Kim Pedersen <[email protected]> >> Date: Tue, 17 Nov 2009 18:47:21 >> To: OSL CCIE Routing and Switching Lab Exam<[email protected]> >> Subject: [OSL | CCIE_RS] OSPF Type-4 LSA & The Forward-Address Part 2 >> issues. >> >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> >> >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> > > > > -- > Regards, > > Joe Astorino CCIE #24347 (R&S) > Sr. Technical Instructor - IPexpert > Mailto: [email protected] > Telephone: +1.810.326.1444 > Live Assistance, Please visit: www.ipexpert.com/chat > eFax: +1.810.454.0130 > > IPexpert is a premier provider of Classroom and Self-Study Cisco CCNA (R&S, > Voice & Security), CCNP, CCVP, CCSP and CCIE (R&S, Voice, Security & Service > Provider) Certification Training with locations throughout the United > States, Europe and Australia. Be sure to check out our online communities at > www.ipexpert.com/communities and our public website at www.ipexpert.com > > > -- Regards, Joe Astorino CCIE #24347 (R&S) Sr. Technical Instructor - IPexpert Mailto: [email protected] Telephone: +1.810.326.1444 Live Assistance, Please visit: www.ipexpert.com/chat eFax: +1.810.454.0130 IPexpert is a premier provider of Classroom and Self-Study Cisco CCNA (R&S, Voice & Security), CCNP, CCVP, CCSP and CCIE (R&S, Voice, Security & Service Provider) Certification Training with locations throughout the United States, Europe and Australia. Be sure to check out our online communities at www.ipexpert.com/communities and our public website at www.ipexpert.com
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