11-05-2012 12:51 AM - edited 03-04-2019 06:02 PM
hi
as far as i know, the routing decision is made:
1. longest match.
2. lower admin distance.
3. lower metric.
thus, if the router lerning /24 route (which is local, i.e loopback) and /32 same route (by eigrp)
the router will prefer the /32 eigrp route.
but from my experience, i found that the local /24 route (whice mark in the routing table as L) is prefer over the learend eigrp /32 route.
is this a natural proccess?
is this a natural proccess when we talked about local inteface vs dynamic protocol?
thanks
jacob
11-05-2012 01:15 AM
Hi,
the Local route is always a host route so /32 and so AD comes into play and AD of connected is 0 which is lower than EIGRP( 90 or 170).
Regards.
Alain
Don't forget to rate helpful posts.
11-05-2012 02:00 AM
thanks for the quick responding.
it seems like it is true.
however this may caus a problem by using the multicat bidir Phantom RP which relies on the
longest match with loopbacks.
"The preferred method for providing Bidir rendezvous point redundancy can be designed using
loopback networks with different mask length . This mechanism relies on unicast routing longest
match route lookups to guaranteea consistent path to the rendezvous point"
the Local routes is negeting the Phantom RP sulotion for redudencey RP.
any idea?
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide