OSPF summarization fail when virtual link is configured

From: Ashok Sud (Ashok.Sud@xxxxxxxxxx)
Date: Wed Aug 15 2001 - 22:24:44 GMT-3

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Hi Group,

Can someone please explain the reason for the following observation.

Scenario:-

      area 0 area 1 area2
R1------------------R2--------------------R3----------------------R4

R2 is the ABR for area 1 and is summarizing networks in area 1 with area
range command. The summary route can be observed in R1's routing table. R2
has number of interfaces connected to other routers in area 1 but is left
out of the diagram.

When I configure a virtual link between R2 and R3, I can observe all the
networks in area 1 in the routing table of R1 along with the summary route.

Is it a normal behaviour or am I missing something?

Thanks
Ashok
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