You also need to make sure that you have good address summarization if you
want it to be successful. I've seen more than my fair share of networks
that ran EIGRP, didn't have proper summarization and/or had a lot of
redundancy. Because, out of the box EIGRP doesn't "require" you to build
networks with summarization, etc. like OSPF. A few years back (before Cisco
started publishing more details about scaling EIGRP) I saw several networks
that were experiencing stability problems when running EIGRP and the thought
was that OSPF would fix their problems. Most of these companies balked at
the thought of re-addressing the network to properly support OSPF and stayed
with EIGRP - using a lot of distribute-lists, etc. (although the same
reasons that OSPF "requires" summarization would be of great benefit in an
EIGRP network).
I've found that binary math is not commonly held skill-set.
What is the reason for going to OSPF in this instance, stability problems
with EIGRP or multi-vendor support?
In my experience people seem to view EIGRP as "easier" than OSPF - while
probably true in really small networks, networks these days just seem to be
getting bigger and the same planning required for a successful OSPF
implementation is required for EIGRP. I haven't seen too many companies
with all-Cisco routers and a healthy EIGRP network looking to change
things - thus the question above.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
David Wolsefer
Sent: Tuesday, May 29, 2001 7:00 PM
To: [EMAIL PROTECTED]
Subject: RE: Migration EIGRP-OSPF [7:5724]
Yes,
We laid in OSPF over EIGRP since the administrative distance of EIGRP is 90
and OSPF is 110. We were then able to check the OSPF databases on each
router to make sure that all routes are advertised correctly. The final step
was to remove eigrp. This results in some downtime, but it was easier to
schedule a block of downtime and cut over.
Regards,
David Wolsefer, CCIE #5858
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Dyson Kuben
Sent: Thursday, May 24, 2001 5:59 AM
To: [EMAIL PROTECTED]
Subject: Migration EIGRP-OSPF [7:5724]
anyone out there ever migrated a large-scale network from EIGRP to OSPF?
Would you be able to share your experiences?
Thanks,
Dyson
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=6597&t=5724
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
