From: vignesh sethuraman (sethuvignesh@yahoo.co.in)
Date: Sun Jan 13 2008 - 15:01:12 ARST
Hello Experts,
Router R1's S1/0 interface is in Area 0 and is connected to R2 interface s1/0 which is in area 0 and R1's S 1/1 interface is Area 1 which is connected to R3 s 1/1 Area 1and R2 s 1/2 interface is connected to R3 s1/2 which is in Area 1.
R2 has a loopback 2.2.2.0/24 which is in area 0.
R1 (S1/0)-----Area 0-------- (S1/0) R2
(s1/1) (S1/2)
! !
! !
Area 1 Area1
!-------------(s1/1) R3 (S12)------ -----!
In R1 the network 2.2.2.0 is under Router link states(Area 0) and also under summary link states(Area 1) in the ospf database.
Normally the path is taken via Area 0 ie direct link between R1 and R2. If the path to that network via Area 0 is down, that is area 0 became discontiguous.
R1 (S1/0)--- Area 0 Down Area 0 -------- (S1/0) R2
(s1/1) (S1/2)
! !
! !
Area 1 Area1
!-------------------------(s1/1) R3 (S12)-----------------------------!
Now the link between R1 and R2 is via R3 (ie) the path for 2.2.2.0/24 is via R3 ie Area 1.will it include the path via Area 1.If not kindly explain me why.
Thanks,
Vignesh
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