From: Howard C. Berkowitz (hcb@gettcomm.com)
Date: Sat Jun 28 2003 - 16:18:43 GMT-3
At 12:17 AM +0800 6/29/03, Punchi-san wrote:
>Hi group,
>
>Just want to clarify the concept of protocol redistribution :
>
>R1 has both OSPF and EIGRP running and a route is originally learned from
>OSPF. If I redistribute the route from OSPF to EIGRP, why the OSPF route
>still get installed into the routing table. Isn't that the default admin.
>distance of EIGRP less than OSPF ? The route did install in the EIGRP
>topoloy database. Any hints appreciated.
>
>thanks
>punchi-san
>
Some hints: think about why OSPF and ISIS install intra-area before
inter-area before external.
Does EIGRP have more than one AD, as does IGRP?
Why would it be important which protocol originally learned the
route? What could go wrong if other protocols seemed authoritative
for the same route learned by redistribution?
While it's not the reason for this specific behavior, consider the
purpose of split horizon. That should give you insight.
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