From: Tim Curci (timcurci@adelphia.net)
Date: Tue Feb 20 2007 - 00:34:32 ART
R4 is connected to R2 over frame (which has an ethernet interface is in area
0)...R2-R6 is needed becuase area 0 has to be contiguous.
----- Original Message -----
From: <wilson@wilsonch.gotdns.com>
To: <ccielab@groupstudy.com>
Sent: Sunday, February 18, 2007 8:33 PM
Subject: IPExpert R&S WB8.0 [OSPF Lab 5] - Virutal Links
> Hi Group,
>
> Just trying to understand when virtual links are needed.
>
> In the IPEXPERT scenario lab #5 it looks like the diagram below:
>
> Why is it that R4 doesn't need a virtual-link?
> Where as R2-R5, R5-R7, R2-6 needs virtual links but not R4? Thanks!
>
>
> R7
> /
> Area 57
> /
> R5
> /
> Area 25
> /
> Area 0 -R2 (Frame Hub) <------Area 246 (Frame spoke)---R4
> \
> Area 246 (Frame Spoke)
> \
> R6
> \
> Multilink Network
> \
> R9
>
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