Redistributing IGP's into EGP's, while possible is not always the best solution. If you IGP (in this case RIP), is not stable it can cause route flapping in BGP (which has greater consequences than for IGP's. in that upstream BGP peers would route dampen your flapping routes.) You would also want to summarise your routes in BGP (help keep the world a smaller place!), and having RIP redistribute into BGP may introduce shorter prefixes (of course this does depend on your exact scenario, as you rip prefix could be a /16 ;) )
Likewise it depends on what you BGP tables are like...if you are taking full BGP routes, and try to distribute this into RIP, you RIP domain would really just fall over. Once again this is all dependent on what you are trying to achieve .. if you where providing a L2 tunnels (over your MPLS) between two sites running rip, (not sure why you would want to redistribute into BGP though), but that could be one scenario. What I have tended to do, is have our IGP (OSPF, and in some places EIGRP), I manually inject our supersets into BGP process using the network command (with a route to null0 for the superset, so that synchronisation is not a problem)! This way BGP only advertises my superset (actually 5 /19 supersets :). That deals with how we advertise our network range to the world. On the edge routers we then have a default originate route that is propogated throughout the IGP, and that is how internal devices get out to the world.. (You can also use HSRP etc) I know I have gone one a bit, but it is quiet difficult to give any advice without knowing what the actual requirements are. As always, this above is just my thoughts! Hope this helps ! Troy Metla Venu Gopal wrote: > > Hi All > > In a single router can I redistribute RIP into BGP and BGP into > RIP. > is this allowed. A explanatory notes is appreciated and links > if any to cisco notes or anywhere is highly applauded. > thanx > venu > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=63845&t=63827 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
