Re: OER/PfR at lab exam?

Awesome, thanks Brian! I'm also in agreement it would be great to have a more advanced class. I'd love to review the many pitfalls and quirks you previously mentioned. I've been trying for days to get my routers to force traffic based on DSCP through a particular BR to no avail. It would be great to cover BRs connected with a GRE tunnel etc.

Looking forward to it!

cheers,
Ben.

From: Jay McMickle <jay.mcmickle_at_yahoo.com<mailto:jay.mcmickle_at_yahoo.com>>
Reply-To: Jay McMickle <jay.mcmickle_at_yahoo.com<mailto:jay.mcmickle_at_yahoo.com>>
Date: Thu, 12 Apr 2012 10:56:00 -0500
To: marc abel <marcabel_at_gmail.com<mailto:marcabel_at_gmail.com>>
Cc: Brian Dennis <bdennis_at_ine.com<mailto:bdennis_at_ine.com>>, Joe Sanchez <marco207p_at_gmail.com<mailto:marco207p_at_gmail.com>>, "ccielab_at_groupstudy.com<mailto:ccielab_at_groupstudy.com>" <ccielab_at_groupstudy.com<mailto:ccielab_at_groupstudy.com>>
Subject: Re: OER/PfR at lab exam?

Agreed. I'm in!

Regards,
Jay McMickle- CCNP,CCSP,CCDP
Sent from iJay

On Apr 12, 2012, at 9:10 AM, marc abel <marcabel_at_gmail.com<mailto:marcabel_at_gmail.com>> wrote:

One suggestion, let's make this a semi advanced class. There are plenty of
resources out there that show how to setup a master and borders. I think
this group is clamoring for something a little deeper. Can we make knowing
the basics a pre-req?
-Marc
On Thu, Apr 12, 2012 at 8:10 AM, Brian Dennis <bdennis_at_ine.com<mailto:bdennis_at_ine.com>> wrote:
I would be more than happy to do an online presentation covering PfR. I'm
flying to NYC from Dubai tonight for a private CCIE bootcamp next week and
then I have a public bootcamp in Washington DC after that so next weekend
I'll be available. So if you all can be flexible we can try for next
weekend. We can use our new streaming solution so that it's all recorded
in a format that everyone can download and view for the people who can't
attend.

--
Brian Dennis, CCIEx5 #2210 (R&S/ISP-Dial/Security/SP/**Voice)
bdennis_at_ine.com<mailto:bdennis_at_ine.com>
Internetwork Expert, Inc.
http://www.INE.com
On 04/12/2012 03:35 AM, Joe Sanchez wrote:
How about this.... Someone (expert) on the subject of OER put together a
webex and let it roll.. I'm willing to sacrifice a Saturday and a little $
to get it rolling.
It seems a lot of people are lacking confidence in the OER realm,
including me...  So what do you say?
Regards,
Joe Sanchez
On Apr 11, 2012, at 4:13 PM, Imran Ali<immrccie_at_gmail.com<mailto:immrccie_at_gmail.com>>  wrote:
Brian ,
A blog  containing the  link will be appreciated by all. However if you
want to unicast when master piece get ready , please include me in cc.
On Wed, Apr 11, 2012 at 12:35 PM, Brian Dennis<bdennis_at_ine.com<mailto:bdennis_at_ine.com>>  wrote:
Since PfR/OER is relatively new to the lab exam it's not covered as much
as a topic like OSPF, MPLS VPNs, etc in most products.  That being said
I
currently spend at least one full day covering it in my 10 Day R&S
bootcamps and I cover it in-depth as getting 5 or 6 points on it in the
lab
exam can be the difference between passing or failing.  I start from the
basics (i.e. load balancing, PfR static&  BGP route manipulation, etc )
and
work into the more advanced configurations (i.e. link groups, fast mode,
jitter probes, delay, PBR based upon DSCP, using PfR for sink holing
traffic, etc).
To be honest there are a ton of strange, for lack of a better term,
quirks
with PfR that can cause trouble when someone is just starting out
learning
PfR.  So although it may seem like a good idea for me to just throwing
you
the labs from my bootcamp, that isn't going to be what you really need
to
truly understand it.  It would be like saying to me "Hey Brian I want to
learn MPLS VPNs" and I say "Here are a couple labs. Good luck!".  Think
that will work?  No.
Here is just a few example of quirks with PfR:  An access-list used
with a
learn list can not match IP addresses but an access-list with a oer-map
should match IP addresses.  When using fast mode with a learn list you
need
to use a prefix list when also matching with an access-list.  Or how to
configure PfR to do PBR unconditionally without any OOP condition, etc,
etc, etc.
As I mentioned there are a lot of pitfalls with learning PfR due to the
fact it's a newer technology and went through a lot of changes in IOS
12.4T.  PfR is an awesome technology and I personally love it but it
can be
complicated to learn for anyone starting out.  I would venture to say
that
is it one of the most complicated of any technology currently covered in
the lab exam.  The documentation is 33% bigger than the OSPF
documentation
and it's only getting larger with QoS being added and PfR domains in
future
releases.
I started a blog series on it (http://goo.gl/yH0ip) but have since
decided to just write a whole document covering PfR as the topic is just
too big to cover in a few blog posts.  I currently have over 100 pages
and
I'm hoping to release it around the end of the month.  If anyone would
like
a copy, free of charge of course, just let me know.
Lastly if anyone wants to come see me cover PfR in person free of charge
just contact INE sales and ask to audit one day of my bootcamp.  It's
normally covered on the 8th day of my bootcamp.  I'm in Dubai this week
and
covered PfR yesterday and have a private bootcamp next week but after
that
I'm teaching in Washington, DC and Seattle next so feel free to stop by.
--
Brian Dennis, CCIEx5 #2210 (R&S/ISP-Dial/Security/SP/****Voice)
bdennis_at_ine.com<mailto:bdennis_at_ine.com>
Internetwork Expert, Inc.
http://www.INE.com
On 04/11/2012 02:35 AM, Ivan Hrvatska wrote:
Hi,
I just purchased ciscopress ccie r&s exam cert guide 4th edition,
since I had 3rd in which there was nothing about OER and PfR. I must
say that the quality of that subject in new edition of the book is
really poor. One config example without any explanations and without
any topology diagrams. Nothing that can help someone to understand the
topic.
So, my question is how deep this subject goes in potential task at
exam? How much time should I spend on it since it can be very complex
feature? The book says:
"As you will see as you explore PfR more deeply, it is remarkably
powerful. As you would expect, it also has many configuration options.
For the CCIE R&S qualifying exam, you should understand the concepts
of PfR and how it operates and its core functionality."
Thanks.
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