Re: LAB Reachability

From: Andrew Dempsey (apdccie@gmail.com)
Date: Mon Oct 27 2008 - 17:34:05 ARST


Ask the proctor. For the IE labs I often have trouble determine where
reachability is needed as sometimes they specify it is not needed to none
BGP routers and other times the redistribution is simply not configured.
Normally in their solution guide they do not have you redistribute the BGP
routes into IGP unless of course a specific task requires it, which often
contradicts the general rules for the lab. As with most ask the proctor
moments I reread the question and try to determine what they are trying to
test. For the workbook it is fine and I think not having them tell you
exactly what to configure all the time in respect to the backbones keeps you
sharp, if I ran into some real ambiguity on a mocklab I would probably be
upset. What mocklab was this? I have taken 1,2,3,5 without any huge issues
although on I think mocklab 3 I did a real simple BGP to IGP redistribution
in a similar situation to yours when it was not needed.

On Mon, Oct 27, 2008 at 1:28 PM, Howard Hooper <Howard.Hooper@dupre.co.uk>wrote:

> Hi,
>
> Please can anybody offer their advice as to what you would do in this
> particular lab situation?
>
> On the front page of the practice lab it clearly says "Upon completion, all
> devices should have full IP reachability to all networks in the routing
> domain, including any networks generated by the backbone routers"
>
> However when going through the lab document and carrying out the various
> tasks
> I'd been given I came to a point where I had to setup bgp peering sessions
> between two of my three internal routers that were running bgp and two of
> the
> backbone routers, after doing this I'd received a few networks from the
> backbone on each router so no problem there, but at that point the lab went
> on
> to multicast.
>
> So I'm confused about, if I'm told every router on my internal network
> should
> be able to see eachother plus the networks generated by the backbone
> routers
> but then due to the lab tasks given only two of my routers can actually see
> any networks from the backbone and I'm not told to do anything further,
> what
> would anybody recommend doing in this situation if faced in the lab exam?
>
> As per the lab guidelines I wasn't allowed to create any static routes, do
> any
> policy routing, change or add IP Addresses so I redistributed between bgp
> and
> the igp running on my internal routers, would I be marked down or lose
> points
> for adding in redistribution that I'm not told to do?
>
> Any help or advice you can give for this situation would be great, thank
> you
>
> Also if anyone from IE is reading this post and happens to be grading my
> lab...I'm so sorry. I reached the decision to do redistribution within the
> last minute of the lab and after setting it up quickly between bgp and ospf
> on
> one of the routers then quickly copying and pasting the commands to the
> second
> router...time runs out...damn!this router is running RIP not
> OSPF!....you'll
> see what I mean when you get to R6...:o)
>
> I'm not intentionally stupid, the medication wears off quickly thats all
> :o)
>
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