From: Marcus (m.gaza@gmx.de)
Date: Sat Jul 09 2005 - 03:53:05 GMT-3
Hello Godswill,
this was my fault. The original posting (see below) said that you can
leave off the "frame-relay broadcast" statement between the spokes,
because the hub does not forward these broadcasts anyway.
This is clever and I understand that Cisco would not be happy to see this.
----------------------
http://www.groupstudy.com/archives/ccielab/200408/msg01493.html
* Subject: RE : Cisco Press Routing and Switchling Lab book
* From: Richard Dumoulin <Richard.Dumoulin@xxxxxxxx>
* Date: Sun, 29 Aug 2004 10:51:47 +0100
One thing I have noticed is that the author configure "broadcast" in the
frame-relay map's between spokes in a frame-relay hub and spoke scenario.
I am not sure this is good practice and we all know that broadcasts are not
forwarded by the hub and it therefore does not make sense,
--Richard
------------------------
Godswill Oletu wrote:
> Marcus,
>
> Look at your list again, I will disagree with a number of them. Share
> your opinions if you disagree....
>
> 1. 'frame-relay map .....broadcast'
> This is an absolute must at the hub, if you want to pass any routing
> protocol accross and offcourse in the CCIE Lab, you will want this to
> occur.
>
> 2. 'ip ospf demand-circuit'
> I will agree with you on this. This is only require on one side of the
> Link.
>
> 3. 'dialer load-threshold'
> I will also agree with you on this.
>
> 4. 'no bgp synchronization'
> This really depend on the wording of your Lab, there are some
> occasions where you will not be told to turn it off, but to meet
> certain goals of the Lab, you must turn it off. It is just like having
> a Lab scenerio like:
>
> 'Configure a multipoint hub and spoke frame relay network, ensure full
> routing reachability for all routers using EIGRP'
>
> Nothing in that scenerio tell you to turn off 'split horizon', but to
> achieve 'full routing reachability', in addition to other
> configurations, split horizon must be turned off.
>
> 5. 'backup interface/dialer-watch only on one side'
> One do not necessary need these on both sides of the link, except your
> scenerio calls for it.
>
> Thanks.
> Godswill Oletu
>
> ----- Original Message ----- From: "Marcus" <m.gaza@gmx.de>
> To: <ccielab@groupstudy.com>
> Sent: Friday, July 08, 2005 7:58 AM
> Subject: Overconfiguration
>
>
>> Hi,
>> if you have two children, would you let them go diving with only one
>> bottle of air, just because it is sufficient?
>> Someday someone might change one router or it's config. It might be
>> helpful in that case to have redundant configurations.
>>
>> I found the following topics that could be overconfiguration:
>> - "frame-relay map broadcast" on the hub because it does not forward
>> broadcasts
>> - "ip ospf demand-circuit" on both sides of the link
>> - "dialer load-treshold" on both sides
>> - turning off bgp synchronization if not asked
>> - backup interface/dialer-watch only on one side
>>
>> Are there other examples?
>> Do you really loose points using these commands too much?
>>
>> Regards,
>> Marcus
>>
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