From: David Anderson (dma@xxxxxxxxx)
Date: Fri Apr 13 2001 - 02:27:28 GMT-3
Ramesh,
Answer to your first question:
Yes, all OSPF routers in the same area will have (or should) identical link
state databases.
2nd question:
In the area0 area1 area 4 config below, you would configure area 0
authentication on the router connected to area 0, and also on the router
connected to area 0, you would use the command area x virtual-link x.x.x.x
message-digest 1 md5 <password>. You would also do the same on the other
end of the virtual link....remember a virtual link is an extension of area
0. Also, this is only for authentication, you would still use the virtual
link commands on the router connecting the remote area to area 0.
question 3.
I would use debug ip ospf packet debug ip ospf events, debug ip ospf
lsa-generation, these are all good additions to debug ip ospf adj.
Hope that helps.
David
At 12:45 AM 4/13/2001 -0400, Ramesh Ramasamy wrote:
>Hi All,Its 'OSPF time' for questions...Thanks for your
>inputs...Ramesh.-------------1.OSPF:
>My understanding is every rtr on a specific area will have the
>map of all the rtrs pertaining to that area.Connection:
>are0-area1-area4;
>On area 0 ABR/router, I have the VL configured thro' area1 ABR - which
>also
>has the area4 interface. Since i do authentication on VL, i have the
>'area 0 auth mess' configured on the area1 ABR. So if i give
>'show ip ospf data' - am seeing area 0, area 1 and area 4 info here.
>I dont see area 4 info on the are0 ABR when I give the 'show ip os dat'Is
>this an exception for area4 because of VL?
>--------------------------------------------------------------2.i am
>looking to view the rtng updates thro some ospf debug
>command - as i could see in the 'debug ip rip'. some command
>that will output the actual 'network' rather than DBD that i see
>in the debug 'ip ospf adj'. i cant see this due to link state
>packets? may be there is a hidden command like the 'ip ospf monitor' toread
>into the lsp's???? Thanks,Ramesh.
>
>------------------------------------------------------------------------
>
>Get your FREE download of MSN Explorer at http://explorer.msn.com
David Anderson
Network Design Engineer
Enterprise Solutions Architecture & Design
(408) 853-5515
dma@cisco.com
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