Depending upon how you define "common".... OSPF is no doubt run on more
routers than EIGRP, is my guess.
But what you should be considering are things like proprietary verses open
standards, all Cisco versus mixed vendor environment, staff technical
skills.
EIGRP is for the most part easier to set up and get running than is OSPF.
But tuning it can be every bit as complex ) On the other hand, EIGRP is
Cisco only. If something happens down the road, new management, good, lower
cost equipment from another vendor, and you end up having to change designs
anyway, then what did EIGRP gain you?
OSPF can be relatively easy to set up if you don't need to worry about
network structure. One can set up OSPF routers to be in a single area, enter
a few statements, and be up and running quickly as well. Of course in terms
of OSPF this is asking for trouble. If your organization grows much, or if
needs change, you may find yourself wishing you had done the backbone / area
/ NSSA / etc design from the outset.
As for scalability, I have heard it said from folks who have been in such
environments that no routing protocol scales much above a few thousand
routers, and so one challenge in these high end environments is to design
things so that one can accommodate ever growing networks. This is one reason
why so many non-ISP major corporations are looking for BGP experience. Their
networks are outgrowing the ability of their routing protocols to scale to
their needs.
Another consideration is that OSPF is an open standard, and as such, is
often found in places you might not expect. For example, the
Checkpoint/Nokia firewall platform. The Nokia box runs OSPF and BGP, and as
such can easily become a good choice for edge devices in complex multiple
security domain models. I believe several vendors offer OSPF as well as RIP
in their layer 3 switching products. I have not checked recently, but I
believe that Cisco offers all supported routing protocols including EIGRP in
their layer three devices as well, but then you are back to an all Cisco
environment.
One thing I can tell you from experience, no matter which you choose, sooner
or later you will find yourself having to redistribute between protocols.
This happens when you start to connect to business partners.
Best wishes.
Chuck
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
GNOME
Sent: Sunday, January 14, 2001 6:51 AM
To: [EMAIL PROTECTED]
Subject: ************** Which is more common - OSPF or EIGRP?
*******************
Which is more common - OSPF or EIGRP?
Hi
I am wondering which routing protocol is more common in the industries -
OSPF or EIGRP ?]
i am trying to implement some routing protocol on my HQ with several (20+)
branches (with only 1 router in each branch) using hub-and-spoke design.
I am wondering which protocol so i use? OSPF or EIGRP ?
Is there a limit on the number of areas that one can create with OSPF?
Any help will be appreciated. Thanks
Regards
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