Redistribution - what could go wrong with...

From: Kenneth Wygand (KWygand@customonline.com)
Date: Thu Jun 17 2004 - 00:23:14 GMT-3


Group,
 
Assume we have a bunch of routers running various routing protocols and need to establish connectivity to some loopback interfaces. If there is no restriction as to _how_ these routes get into the routing process, what could go wrong if we natively advertise every loopback interface into every active routing protocol on all associated routers. Assuming we are starting with a "stable" redistribution scheme, it would seem to me that by advertising all loopbacks into all native routing processes would be a simple way to achieve full reachability to all loopback interfaces. For example, if we have OSPF, EIGRP and IS-IS all running on a single router and there is also a loopback on that router that needs to be advertised, what is wrong (if anything) with adding the loopback interface into all three routing processes? For the CCIE exam, would this not indicate "mastery knowledge of the technology"?
 
Thanks in advance,
Ken



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