nanog mailing list archives
Re: OSPF -vs- ISIS
From: vijay gill <vgill () vijaygill com>
Date: Tue, 21 Jun 2005 10:19:54 -0400
Dan Evans wrote:
All, Can anyone point me to information on what the top N service providers are using for their IGP? I'm trying to build a case for switching from OSPF to IS-IS. Those on this list who are currently running IS-IS, do you find better scalability and stability running IS-IS than OSPF? I understand that this question is a lot more complex than a simple yes or no since factors like design and routing policy will certainly affect the protocols behavior. Any insights or experiences that you can share would be most helpful. Thanks, Daniel Evans Alltel Communications
Daniel, in short, we've found ISIS to be slightly easier to maintain and run, with slightly more peace of mind in terms of securitiy than OSPF. Performance and stability wise, no major difference that was noticable.
For more information, see the talk by Dave Katz at http://www.nanog.org/mtg-0006/katz.html
Also, AOL's experience in switching from OSPF to ISIS is covered at http://www.nanog.org/mtg-0310/gill.html the PDF on that page is actually an older version. The full version I used at NANOG is available at http://www.vijaygill.com/oi.pdf
/vijay
Current thread:
- OSPF -vs- ISIS Dan Evans (Jun 21)
- Re: OSPF -vs- ISIS Eric Gauthier (Jun 21)
- Re: OSPF -vs- ISIS Erik Haagsman (Jun 21)
- Re: OSPF -vs- ISIS vijay gill (Jun 21)
- Re: OSPF -vs- ISIS Dan Evans (Jun 21)
- RE: OSPF -vs- ISIS Manav Bhatia (Jun 22)
- Re: OSPF -vs- ISIS Abhishek Verma (Jun 27)
- <Possible follow-ups>
- Re: OSPF -vs- ISIS Fergie (Paul Ferguson) (Jun 21)
- RE: OSPF -vs- ISIS Mike Bernico (Jun 21)
- Re: OSPF -vs- ISIS Stephen Sprunk (Jun 21)
- Re: OSPF -vs- ISIS Wayne E. Bouchard (Jun 21)
- Re: OSPF -vs- ISIS Robert E . Seastrom (Jun 21)
- Re: OSPF -vs- ISIS Stephen Sprunk (Jun 21)
- Re: OSPF -vs- ISIS Fergie (Paul Ferguson) (Jun 21)
- RE: OSPF -vs- ISIS Barry Greene (bgreene) (Jun 22)