RE: Lab Tips

From: Richard Dumoulin (richard.dumoulin@vanco.es)
Date: Thu Mar 18 2004 - 19:04:48 GMT-3


Hi Packet Man,

Why this ? Reset BGP sessions using hard reset rather than soft reset.

-----Mensaje original-----
De: Packet Man [mailto:ccie2b@hotmail.com]
Enviado el: jueves, 18 de marzo de 2004 22:59
Para: ccielab@groupstudy.com
Asunto: Lab Tips

Hi all,

I've created a "Lab Tips" file of small items - factoids, reminders,
suggestions, etc, I tend to forget. This is something I can refer to
constantly when I'm doing practice labs or just have a few minutes to spare.

Here's a snippet from my Tips file.

BGP
Hard code router-id
Don't use loopbacks for ibgp peering unless explicitly required
Look for nei ... next-hop-self requirement especially on F/R hub and
ethernets
Disable bgp client to client reflection when clients are fully meshed
Turn off auto-sum & sync unless explicitly required
Reset BGP sessions using hard reset rather than soft reset.
Know how to config nei xxxx local-as in combo with RR.
Know all ways to config dampening

I'm sharing this with GS because I suspect many candidates might also have
something like this. And, I thought that with all the great brain power
among GS subscribers we could all help each other by adding tips to such a
file.

Here's my definition of what makes for a good tip.

1) A tip may not in any way violate the NDA
2) A good tip should be something that might be easily forgotten because
it's not that often encountered or somehow different from the ordinary. For

example, when configuring ISIS over frame relay, don't forget to enter the
"fram map clns <dlci> broadcast" statement. For me, this is a good tip
because I personally don't practice ISIS that often and I seem to almost
always forget that command.

3) A good tip must be short and clear because the whole idea behind this
file is to provide a quick reminder of various networking facts that can
come in handy during the actual lab.

4) A good tip must should not waste time going into the "why" of the fact or

all the various permutations. For that, anyone interested can research the
"why" of the fact on their own.

5) A good tip for one person might not be at all useful to someone else. We

each tend to remember and forget different things. But, for example, over
time the BGP tips section may include 30 items and while I doubt all 30
items will be useful to all people, I'm sure that 5 or 10 or 15 of the tips
will be useful to many people - just that it won't be the same 5 or 10 or 15

tips.

6) A good tip must be potentially relevant to a ccie R&S candidate.
Therefore, I ask that Off Topic comments be submitted elsewhere - Let's keep

posts with the subject "Lab Tips" focus on just that.

It's my hope that over time, with the input of a lots of people here, this
lab tips file will grow to include tips that cover every topic potentially
on the R&S lab exam. And, that as a result, we can each add the most
personally valuable tips from this group effort to our own lab tips file.

Right now, my tips file has no entries for voice. So, I'd like to start off

by asking people to submit their voice config tips. Of course, tips on any
potential lab are also welcomed.

Here are some other potential tips topics I hope people feel free to submit
tips to.

Redistribution

ATM

3550

OSPF

NAT

HSRP

F/R

ISDN

QOS

Multicast

NTP

Voice

Eigrp

Please add your tip under the appropriate heading and send back to GS.

Hope this helps lots of people.

Packet Man



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