Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

OSPF vs IS-IS

Hi,

why there is variation in the usage of IGP (ospf/is-is) among ISPs. why some ISPs are using IS-IS while others use OSPF ?

what are the issues related to this ? whether management issues(cost, maintanance) or design issues(scalability, security)?

please tell me in detail.

thank you.

3 REPLIES
Hall of Fame Super Gold

Re: OSPF vs IS-IS

Hi, you will find that certain "high-end" ISPs uses IS-IS. It is however over engineered for most users where OSPF is just fine. No detailed discussion is possible withing this scope, you might need to go some 15 years in the cisco-nsp lists for one.

New Member

Re: OSPF vs IS-IS

hi,

Just tell me why there is a debate between OSPF and IS-IS please.

thank you.

Hall of Fame Super Bronze

Re: OSPF vs IS-IS

You may find this article useful

http://www.nanog.org/mtg-0006/katz.html

HTH,

__

Edison.

271
Views
5
Helpful
3
Replies