OSPF has more "enterprise" oriented features including more options for
supporting varied network mediums (NBMA comes to mind) and definitely a
marked advantage in published materials. Further, without recent
modifications, the ability to scope the flow of LSA's and maintain some
degree of routing optimality was better with OSPF which made it more suited
to large enterprise networks where multi area topologies are the norm.
Recent modifications to ISIS including the ability to "leak" routing
information into L1 areas from the backbone allows ISIS to offer similar
functionality - (think stub vs totally stubby in OSPF)
I have personally not seen ISIS outside of already mentioned SDH management
networks and ISP backbones and personally would not recommend running ISIS
over OSPF in an enterprise network simply because it's easier and usually
cheaper to find OSPF knowledge than ISIS.
Peter
*********** REPLY SEPARATOR ***********
On 5/16/2001 at 11:42 PM nrf wrote:
>Damn, I forgot about that whole Decnet thing. That's right, that's right,
>Decnet implements Is-Is for PhaseV migration. I have even worked on a
>network like that, how foolish of me to forget.
>
>So I guess I should have narrowed my question. What I should have said is,
>has anybody seen Integrated IS-IS (for IP routing only) being used in a
>real
>working network other than an ISP?
>
>
>
>
>
>""Howard C. Berkowitz"" wrote in message
>[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
>> >Other than in ISP's, has anybody seen IS-IS in use in a real production
>> >network?
>> >
>> A subset is used for SONET managment in telcos. I have also seen it
>> used in some conversions from DECnet Phase IV to Phase V (which is
>> OSI) in order to get dual OSI and IP routing.
>> FAQ, list archives, and subscription info:
>http://www.groupstudy.com/list/cisco.html
>> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>FAQ, list archives, and subscription info:
>http://www.groupstudy.com/list/cisco.html
>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=4865&t=4784
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
