From: Tim Fletcher (tim@fletchmail.net)
Date: Fri Apr 25 2003 - 12:01:23 GMT-3
If all the routers are on the same Ethernet segment, you should not have 2
hops to get from one to another regardless of any routing protocol. Sounds
like you have a basic connectivity problem, not an OSPF problem.
-Tim Fletcher #11406
At 03:47 PM 4/24/2003 -0400, ccie2be wrote:
>Hi group,
>
>I have 4 routers, A, B, C and D on an ethernet segment with each router's
>ethernet interface configured to be in OSPF area 1. Routers A and B are ABRs
>between area 0 and area 1. Router C is also an ABR between area 1 and area
>2.
>
>When I configured a virtual link between rtr C and B it doesn't work - the
>output of show ip ospf virtual-link shows the v-link down. However, when I
>configure the v-link between rtr C and A, it does work. I'm trying to figure
>out why this is.
>
>On rtr C, I did a show ip ospf nei and saw the following:
>
>nei A Full/BDR
>nei B 2way/DRother
>nei D Full/DR
>
>
>Also, when I ping trace between rtr C and B, it takes 2 hops, not 1 even
>though both rtr C and B are on the same ethernet segment.
>
>Given the above info, is it possible that a virtual link across an ethernet
>segment has to be between a router and the DR or BDR on the segment?
>
>Thanks in advanced. Jim
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