From: Andrew Anderson (and123and@googlemail.com)
Date: Tue May 30 2006 - 04:59:42 ART
Hi
Router A and B connect to network X.
Router A and B also connect to Router C.
Router A advertises Network X to router C via OSPF.
Router B advertises Network X to router C via RIP.
Router D also runs RIP and connects to Router C.
No redistribution.
Now, its the concept I am looking to understand rather than any specifics.
So, router C has a route to Network X via both OSPF and RIP, and inserts the
OSPF learned route to its IP routing table (lower admin). I had thought that
Router D would still learn of the route via RIP, but having lab'd this it
appears not, Network X is not advertised from Router C, so router D does not
get to Network X (unless OSPF is removed from router C).
Am I right in thinking the following, if a router running multiple
RPs learns of a route via all RPs, then it chooses lowest admin RP for that
route, and will remove route to that network from higher admin RPs but
continue to advertise thru the RP it used to insert the route in to the
routing table.
Looks like a router is a pretty selfish beast, only really cares about its
own reachability?
-A
This archive was generated by hypermail 2.1.4 : Thu Jun 01 2006 - 06:33:22 ART