From: Marvin Greenlee (marvingreenlee@yahoo.com)
Date: Wed Sep 08 2004 - 17:53:57 GMT-3
"When BGP tries to install bestpath prefix into
Routing Information Base (RIB), i.e., the IP Routing
table, RIB might reject the BGP route due to any of
the following reasons:
1. Route with better administrative distance already
present in IGP, for example, if a static route already
exists in IP Routing table.
2. Memory failure.
3. The number of routes in VPN routing/forwarding
(VRF) exceeds the route-limit configured under the VRF
instance.
In such cases, the prefixes that are rejected for the
above reasons are identified by r RIB Failure in the
show ip bgp command output and are not advertised to
the peers. This feature was first made available in
Cisco IOS Software release 12.2(08.05)T."
BGP - Frequently Asked Questions -
http://www.cisco.com/en/US/tech/tk365/tk80/technologies_q_and_a_item09186a00800949e8.shtml
Marvin Greenlee
Network Learning, Inc.
marvin@ccbootcamp.com
--- ccie2be <ccie2be@nyc.rr.com> wrote:
> HI guys,
>
> when I did a show ip bgp I got this output
>
> r>i 136.6.23.2 0
> 100 0 300 200 400 i
> r 136.6.44.0/24 136.6.15.5
> 0 200 200 200 200
> 200
> 400 i
> r>i 136.6.23.2 0
> 100 0 300 200 400 i
> *>i205.90.31.0 136.6.23.2 0
> 100 0 300 200 254 ?
>
>
> As you can see, there's a "r" next to 2 of the
> entries. Why is that? And,
> more importantly, what should I do about it?
>
> Also, how will that affect routing?
>
> Thanks in advance, Tim
>
>
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