Hi Joe, I have no doubt that you will :) It seems when doing this, the interface will actually only show up in one of the proccesses (the first one configured) at a time. A built in mechanism for avoiding poor design choices i guess.
Sincerely, Kim Pedersen On Fri, May 15, 2009 at 10:05 AM, Joe Astorino <[email protected]>wrote: > Hi Kim, > > Thanks for the kind words, and we will be working hard to get you there as > well! Regarding your OSPF situation there, I honestly never tried doing two > OSPF processes and trying to put the same interface into area 0 in both > processes. Clearly, as you mention there it doesn't seem to work. I don't > know of any specific documentation to support that, but when in doubt lab it > up, thats the right mentality. > > What I was trying to explain to Robert was that in the event you have two > different area 0's in your diagram, but they are a quite a distance apart -- > One alternative option to creating a ton of virtual links would be to just > run one of them in a seperate OSPF process, and redistribute. This can come > in handy particuarly when the second area 0 that is all the way on the other > side of your network happens to also be on the edge of your OSPF domain as > well. Now, in that case we would be running two processes, but NOT be > running two OSPF processes on the same interface like you have here. > > Interesting stuff though! > > > Regards, > > Joe Astorino > CCIE #24347 (R&S) > Sr. Support Engineer – IPexpert, Inc. > URL: http://www.IPexpert.com <http://www.ipexpert.com/> > > > > ------------------------------ > *From:* Kim Pedersen [mailto:[email protected]] > *Sent:* Friday, May 15, 2009 1:59 AM > *To:* Joe Astorino > *Cc:* Robert S Wyzykowski; [email protected]; > [email protected] > *Subject:* Re: [OSL | CCIE_RS] Volume 3 Lab8 Section 3.3 > > Hi Joe, > > Congrats with your number!! > > I have tried to lab up a scenario with two ospf instances on the same > router, mapping the same interfaces to area 0 in both. I thought i read > somewhere that OSPFv2 doesnt have any way to differentiate this on the same > subnet, as OSPFv3 does with a sort of instance-field. Results show that only > one adjacency will be made: > > R1 <-> R2, where R1 has two instances of OSPF, both marking the link > between R1 and R2, as being in area 0. Only instance 1 will actually show > up, and be adjacent with from R2. Are there any documentation regarding this > behavior? > > Sincerely, > Kim Pedersen > > On Fri, May 15, 2009 at 7:38 AM, Joe Astorino <[email protected]>wrote: > >> Hey Robert, >> >> In general, yes you CAN connect two discontiguous area 0's in OSPF but you >> are not REQUIRED to necessarily. Another option is to have seperate OSPF >> processes running, and just use redistribution. If it is a giant pain in >> the butt to connect the two area 0's you may just want to run a seperate >> process of OSPF all together on one of the routers, then just redistribute >> that process. Does that make sense? >> >> >> Regards, >> >> Joe Astorino >> CCIE #24347 (R&S) >> Sr. Support Engineer – IPexpert, Inc. >> URL: http://www.IPexpert.com <http://www.ipexpert.com/> >> >> >> >> ------------------------------ >> *From:* [email protected] [mailto: >> [email protected]] *On Behalf Of *Robert S Wyzykowski >> *Sent:* Friday, May 15, 2009 12:38 AM >> *To:* [email protected]; [email protected] >> *Subject:* [OSL | CCIE_RS] Volume 3 Lab8 Section 3.3 >> >> >> In this topology, there are two separate OSPF Domains, with separate Area >> 0s, and the proctor guide did not connect them together. I was under the >> impression if you have OSPF in different areas of the network, it was a >> requirement to make sure it was one big OSPF domain. >> >> In this lab they are separate. >> >> Any thoughts? >> >> Robert Wyzykowski >> Manager, Global Telecommunications >> IMERYS >> 30 Mansell Court East - Suite 220 >> Roswell, GA, USA >> Phone: +1 770 645 3734 >> Mobile: +1 404-434 9000 >> >> >> >> >> From: jmangawang <[email protected]> To: >> [email protected] Date: 05/14/2009 04:14 PM Subject: [OSL | >> CCIE_RS] Two seemingly inconsequential CCIE Lab questions for Joe >> ------------------------------ >> >> >> >> Joe, >> >> First, congratulations on getting your CCIE. I've been a fan of your >> blog ever since starting my own journey back in March and found your >> experiences match a lot of my own. Onto the questions: >> >> 1) How big is the desk area? >> 2) How big is the monitor and what is the resolution? >> >> I know these may seem dumb, but during my initial study phase, I've >> basically taken up my entire dining room table (seats 8) and use a 22" >> widescreen monitor with a really high resolution. I'd hate to get >> there only to find out that we have to use an old 14" CRT on an >> elementary school desk (I know this is not the case, but I hope you >> get the visualization). >> >> Thanks, >> >> Jason >> >> No virus found in this incoming message. >> Checked by AVG - www.avg.com >> Version: 8.5.323 / Virus Database: 270.12.29/2114 - Release Date: 05/14/09 >> 06:28:00 >> >> > > > -- > // Freedom Matters > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.323 / Virus Database: 270.12.29/2114 - Release Date: 05/14/09 > 06:28:00 > -- // Freedom Matters
