Re: Off Subject - OPSF best practice

If
Hub and Spoke use Static Routes
Full Mesh,Partially Mesh use Dynamic routes

Thanks
Shahid Ansari

On Wed, Jan 20, 2010 at 10:18 PM, Ronnie Angello
<ronnie.angello_at_gmail.com>wrote:

> I'm not sure that it makes sense to put each location in its own area,
> but it would definitely make sense for the entire WAN distribution
> block to be in it's own area. In fact, it's best practice to follow
> the physical network design when desiging OSPF areas. If you have
> implemented a hierarchical design, then you would want all core
> interfaces and distribution interfaces that point to the core to be in
> area 0, making the distribution switches the ABRs. Each individual
> distribution block should be placed in its own totally stubby area if
> possible, so you would have separate areas for WAN, Campus, Data
> Center, etc.
>
> You could argue that the network is simple enough to implement OSPF in
> a single area, or that you don't need to run OSPF period. However,
> this multiarea design takes advantage of the natural two tier
> hierarchical design of OSPF, which will ultimately provide improved
> convergence, fault isolation, and deterministic traffic patterns. Not
> to mention how clean it is when you login to a branch router and all
> you see is a single 0.0.0.0 and directly connected routes!
>
> Thanks,
> Ronnie
>
> On Tue, Jan 19, 2010 at 7:11 PM, Charles T. Alexander
> <charles.t.alexander_at_verizon.net> wrote:
> > B
> >
> > Does it make sense in OSPF from performance for, a firm of 1000 users in
> > 16 WAN locations to have different OSPF areas for each office rather than
> > putting everyone in Area 0?
> >
> >
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> --
> Ronald Angello
> CCIE 17846
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Received on Thu Jan 21 2010 - 09:48:12 ART