From: StudyManiac (groupstudy1@xxxxxxxx)
Date: Fri Feb 15 2002 - 14:42:55 GMT-3
Redistribution happens from the routing table, not the routing protocol
database. Think about that and you also answer the split horizon question.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Xu, James
Sent: Thursday, February 14, 2002 11:58 AM
To: ccielab@groupstudy.com
Subject: How route redistribution EXACTLY works --- need confirmation
All:
It has been and still puzzling me how a routing process pick routes and
redistribute them into another routing process and vice versa? As an
example, mutual redistribution between RIP and OSPF in a router:
Here is my experience and explanation:
1). The RIP process picks all RIP routes inside its database, and
redistributes these routes into OSPF routing process.
2). OSPF process picks all OSPF routes in the OSPF database, and
redistributes these routes into RIP routing process.
During the redistribution, the split-horizon rule appies, meaning the newly
redistributed routes from RIP into OSPF will not be redistributed back into
RIP right away, and vice versa.
Any input are appreciated, especially some links for this mechnism.
James
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