From: Larson, Chris (CLarson@usaid.gov)
Date: Fri Sep 06 2002 - 13:01:34 GMT-3
Yes, if I remember correctly, this is how lycos does it as well. OSPF at
each site, ISIS WAN core between sites.
> -----Original Message-----
> From: Howard C. Berkowitz [SMTP:hcb@gettcomm.com]
> Sent: Friday, September 06, 2002 11:28 AM
> To: ccielab@groupstudy.com
> Subject: RE: OSPF over EIGRP !!!!
>
> At 10:42 AM -0400 9/6/02, Larson, Chris wrote:
> >You have opened a can of worms. Arguments of OSPF vs. EIGRP have gone on
> for
> >a long time when in fact you cannot say that one is better then the other
> >until you apply it to your situation. You need to know both
> (operationally
> >and functionally) and then make a determination as to which is best for
> your
> >situation, or meets the requirements fo your task.
> >
> > There are times when one might be favorable or even necessary over the
> >other. If you are designing for Qwest then there is probably no question
> as
> >to which one you would want to use.
>
> Last time I looked at Qwest's ISP network, they used OSPF in the edge
> and ISIS in the core. The rationale was that OSPF had better
> propagation control, while ISIS was more scalable in a stable core.
>
> The OSPF hierarchy has traditionally been more flexible than that of ISIS.
>
> You can implement hierarchy in EIGRP, and it's even more
> flexible...but that flexibility is labor-intensive and has no
> mechanism for forcing discipline. ISIS and OSPF do.
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