From: Jongsoo kim (bstrt2002@gmail.com)
Date: Mon Apr 04 2005 - 14:57:58 GMT-3
Thanks Bruce for your excellent stuff as usual !!!
Now I know what you meant by "save show command on notepad" so I can build
TCL script.
Anyway, I readed your below advice and certainly it provide me more insight
to my list, which was stronlgy based on my learing from our Saturday study/
NMC checkitlab report and Brian's Audio.
In fact, below your thorough email makes me rethink that I may do
summary/route-filter/area range, etc ( these are considered as trap or RATHOLE
) after I achieve a full reachability after redistribution.
Also doing these stuffs at a same continguous time is more effiecient!
If I heard another 999,000 times more of "DO NOT GO DOWN A RATHOLE EARLY!"
from you, it would be 1 Million times in total.... And now it is engraved in
my brain... ^ ^
Even if I failed, it would never ne a case of " I was stuck on a couple of
questions, which watsed a lot of my time" as long as it is not L2 though.
Group
Now, I have a little concern on L2 ( I have never had an issue on L2 from
my last attempt though) , I never studied PPPoE and IPinIP.
Can someone urgently post a simple end-to-end config for PPPoE and IPinIP? (
Bruce, maybe could you copy paste it from NMC library somehow I can't access
it from my pc and I have no time to figured out my computer)
Thanks
Jongsoo
On Apr 4, 2005 6:04 AM, Andrew B. Caslow <abcaslow@netmasterclass.net>
wrote:
>
> Jongsoo,
>
> I am glad to see you are taking the "checklist" approach to CCIE
> preparation to heart. I like how you are attempting to list out all of the
> possible configuration options you might encounter for a given technology in
> your Checklist. Here are some suggestions to further enhancing your
> checklist:
>
> Consider performing this step either immediately before or after you
> enter your alias commands: Inspect and validate your access to each router
> and switch. Once access is validated, inspect each router/switch's IOS
> version, image type, and base configuration. Make sure that the interfaces
> found on your actual routers and switches match what is displayed in your
> Exam's diagrams. Also, make sure that the IP address's included in the
> initial configuration of each router and switch also match the IP addresses
> in your Exam diagram.
>
> Here is a suggestion to elaborating on your step 2, your "understand the
> topology" step. I believe this step is performed to "size up" the
> redistribution challenges you may encounter when you reach the Golden
> Moment. Correct me if I am wrong, but this step sounds like one of the
> opening steps we discussed in our recent Saturday study group. If this is
> not the same step, then disregard the following suggestions. If it is the
> same step we discussed in the study session, consider elaborating this step
> with the following three sub-steps: (1) determine whether there are any
> loops in your exam's topology, (2) If there are any loops, does each loop
> reside within a single IGP or does a given loop reside in multiple IGP's? If
> the loop resides entirely in one IGP, then the loop should present zero to
> little redistribution challenges. (3). If the loop is spread over multiple
> IGP's, then you need to determine which routing domain will be the transit
> domain and which will be non-transit. You do not need to get into the heavy
> details at this time since you are at the very beginning of the Exam. It
> should take you no more than a minute to perform this 3 step initial
> assessment to determine what challenges you may encounter in getting to the
> Golden Moment. For more information on strategies to attack CCIE lab
> redistribution requirements, read the following e-mails I posted early last
> year:
>
> http://www.groupstudy.com/archives/ccielab/200406/msg00335.html ,
> http://www.groupstudy.com/archives/ccielab/200406/msg00544.html and Also,
> the NMC Technical Library extensively discusses this topic.
>
> Between your listed steps of "understand the topology" and "Attack F/R",
> I suggest you add an interface classification step. While you have a section
> for Frame-Relay, CAT 3550, ATM and ISDN, you make no mention of the
> following logical interface types: GRE tunnels, IPinIP, BVI, PPPoE based
> interfaces, etc. All of these logical interface types could be encountered
> on the CCIE lab. While you know you are going to have a Frame-Relay,
> Ethernet, ATM and ISDN configuration requirement, you might also encounter
> these "logical" interface types. Many of the CCIE candidates that need to
> configure these "logical" interface types in their actual CCIE lab overlook
> these interface options. If you need to configure these "logical"
> interfaces, you will need to do this early in the test. Candidates that
> overlook these interface options, begin to fail the Exam within the first
> hour of the Exam. Furthermore, if you encounter these "logical" interfaces,
> more than likely they will not be explicitly mentioned. More than likely,
> you will be directed to configure these interfaces with seemingly vague and
> confusing wording which will force you to "spot the issue" on which specific
> logical interface(s) need to be implemented. Also, related to this same
> subject of interface classification, you must also determine which
> interfaces are performing Layer 2 forwarding and which are performing Layer
> 3 forwarding. All of this is represented in the interface classification
> decision diagram found in the NMC Technical Library. In reviewing our access
> logs, I noticed you were reviewing the page where this decision diagram
> resides recently. I suggest you include this interface classification step
> in your Checklist. For those in the GroupStudy community, I will PDF this
> decision diagram so that they can review it. Remember, for any configuration
> task, consider all options and make no assumptions!!!
>
> Everything that is written above is included in the NMC Technical
> Library. In the Technical Library, we have checklists for:
>
> Frame-Relay, Catalyst 3550,ATM, ISDN, PPPoX (PPPoFR, PPPoA, PPPoE),GRE.
> IPinIP, IRB, RIP/OSPF/EIGRP/ISIS, Redistribution, BGP, Multicast, QOS,
> Security, IPv6, DLSw+, NAT, DHCP,
>
> And a range of IP services.
>
> Furthermore, checkout these other checklists in the Technical Library:
>
> Pre-Exam Checklist Beginning of Exam Checklist, End of Exam Checklist,
> General Practices Checklist and a Desperation Checklist (AHHHH!!! OH NO!!!!
> J )
>
> If you have the time, I suggest you review these Checklists.
>
> It is our belief at NetMasterClass that much of the CCIE lab comes down
> to how well prepared and refined is a candidate's set of checklists are. At
> NMC, we see the CCIE lab as a duel between a CCIE candidate's checklists and
> the contents contained within a CCIE lab. The CCIE candidate's checklists
> should take into account all configuration options and all configuration
> assumptions that may be relevant to configuring a given internetworking
> technology. For any given technology, a CCIE candidate must consider all
> options and make no assumptions!!!
>
> In closing, here is a brief roadmap/checklist to taking the CCIE lab:
>
> First, view the entire CCIE lab as being divided into three major
> categories:
>
> Category #1: Topics Related to Attaining Universal UNICAST reachability.
> This category includes all link-layer technologies (Frame, CAT 3550, ATM,
> ISDN, logical interfaces), all IGP's, redistribution, BGP and any other
> topics related to attaining universal UNICAST reachability. This topics will
> make up about 40-45% of your Exam. In order to have a chance at passing the
> CCIE lab, you must complete all of these topics by lunchtime.
>
> Category #2: "The Big Three Topics that Build Upon Universal UNICAST
> Reachability": QoS, Multicast and Security. Each of these topics will
> possess an average point value of 6-10 points. These topics make up about
> 25-30% of your Exam.
>
> Category #3: "The Remaining Topics: IPv6, DLSw+, NAT, DHCP, HSRP, VRRP
> IP Services and IOS Features. Each of these topics will possess an average
> point value of 3-5 points. These topics make up about 30-35% of your Exam.
>
> Now, here is a general step-by-step test taking strategy:
>
> Step 1.1: After the proctor says "You may begin", open your exam
> workbook, briefly review all topics in the lab and locate the diagrams in
> the exam workbook.
>
> Step 1.2: Go to the pages that include the Exam diagrams and perform the 3
> step analysis of the exam's topology that is described above to attain a
> general determination of what redistribution challenges you might encounter
> just prior to the Golden Moment.
>
> Step 1.3: Perform the interface classification mentioned above.
>
> TOTAL ELAPSED TIME FOR STEPS 1.1-1.3: 5 minutes
>
> Step 2: With your exam workbook open to the pages with the diagrams,
> inspect your Exam racks hardware access, check that the interfaces and
> addresses displayed in your workbook's diagrams match up with what is in
> your workbook.
>
> TOTAL ELAPSED TIME FOR STEP 2: 5 minutes
>
> Step 3: Install your exam housekeeping and shortcut commands: no ip
> domain-lookup, alias commands, etc.
>
> TOTAL ELAPSED TIME FOR STEP 3: 5 minutes
>
> Step 4: Transpose the diagram(s) in your exam workbook onto a separate
> sheet of paper. If you can, provide a rough trace of the exam diagram in
> your workbook onto your personal worksheet. This step will result in drawing
> a "bare bones" Exam diagram. You will enhance this base diagram in the next
> step.
>
> TOTAL ELAPSED TIME FOR STEP 4: 5 minutes
>
> *****STEP 5: THIS IS A BIG STEP!!!! Now, you begin to apply all of your
> technology specific checklists. During this Step, you enhance the base
> diagram you created in Step 4. Starting with the link-layer configuration
> tasks, read carefully and consider all configuration options and explicitly
> identify and reflect on all configuration assumptions. Pay very careful
> attention to words/phrases such as "Do not", "only" and "default". Do not
> simply interpret these words/phrases as directing you to the correct answer.
> Think of these words/phrases as taking options away from you. Also, read
> ahead to determine if tasks in one section impact how you configure
> something in another section. It is during this Step, that you determine how
> you are going to configure a specific Exam tasks.
>
> TOTAL ELAPSED TIME FOR STEP 5: 25 minutes
>
> YOU ARE NOW 45 MINUTES INTO THE EXAM. NOW, BEGIN TO PERFORM THE HANDS ON
> CONFIGURATION TASKS OF YOUR EXAM.
>
> Step 6: Attaining Universal Reachability on a Per Link/Network Basis.
> Configure the Frame-Relay and the Catalyst 3550 VLAN's/trunks first; then
> configure the ATM, ISDN, p2p and logical interfaces (if any) second.
> Regarding ISDN, I would perform an ISDN test call (isdn test call interface
> bri0/0 xxxxxx) at this time and configure ISDN for link layer/basic IP
> connectivity only at this step. Do not configure any routing or dial backup
> solutions for ISDN at this time. AT THIS TIME, YOU SHOULD HAVE ALL OF THE
> INTERFACES INCLUDED IN YOUR LAB CONFIGURED AND REACHABLE ON A PER NETWORK
> BASIS ONLY. ALSO, NO INTERFACES SHOULD BE FLAPPING. This last statement is
> of particular relevance to ISDN. ALSO REMEMBER: DO NOT GO DOWN A RATHOLE
> EARLY. If you encounter a configuration requirement that involves some type
> of non-essential enhancement feature AND you don't know how to configure the
> feature, it is recommended that you make spend time attempting to configure
> the task at this time. Consider skipping the task and returning to it later.
> DO NOT GO DOWN A RATHOLE EARLY! You must make this decision on a case by
> case basis. However, it is strongly suggested to not begin wrestling with
> topics you do not feel very comfortable with early in the exam. It is
> recommended to reserve this mental wrestling match for later in the Exam.
>
> TOTAL ELAPSED TIME FOR STEP 6/Attaining Universal Reachability on a Per
> Network Basis: 40 minutes
>
> Step 7: Attaining Universal Reachability on a Per IGP Basis. Configure
> your IGP's. Focus on base connectivity first. Then focus on topics such as
> metric adjustment, summarization, timer adjustment and authentication.
>
> TOTAL ELAPSED TIME FOR STEP 7/Attaining Universal Reachability on a Per
> IGP Basis: 30 minutes
>
> Step 8: THE GOLDEN MOMENT: Attaining Universal Reachability on an
> inter-IGP basis via Redistribution. It is recommended to configure only as
> much redistribution you need to in order to fulfill the configuration
> requirements of the Exam. Remember to test your redistribution configuration
> with the TCL script we discussed. It sounds like you have become comfortable
> with it. You mention it in your posted Checklist.
>
> TOTAL ELAPSED TIME FOR STEP 8/Attaining the Golden Moment: 30 minutes
>
> YOU ARE NOW 145 MINUTES (2 hours 25 minutes) INTO THE EXAM. To give
> yourself a time buffer as you approach the Golden Moment, add an additional
> 35 minutes. Therefore, your target timetable for getting to the Golden
> Moment should be 3 hours.
>
> Step 9: Attaining Universal Reachability on an inter-AS Basis: BGP. The
> general points in your posted Checklist provide a good outline for attacking
> BGP.
>
> TOTAL ELAPSED TIME FOR STEP 9: 60 minutes
>
> It is now lunchtime. This is a suggested goal. Have all configuration
> tasks performed up to BGP by lunchtime.
>
> Right before you leave for your lunch break, it is suggested that you
> save all of your configurations and reload your routers.
>
> LUNCHTIME: During lunchtime, review what configuration tasks you may have
> skipped in the morning. Remember, you don't want to go down any ratholes
> during the morning of the Exam. Also, review what topics are remain to be
> configured in your Exam. Lunchtime allows you to get out of the time
> pressure of the Exam and plan your test taking strategy without having time
> pressure impacting you. Many CCIE candidates like to identify and select
> what remaining topics they feel very comfortable with and prepare to
> configure these topics as soon as the lunch break ends. This is called the
> "grab the low hanging fruit" step in the CCIE lab. Candidates plan their
> "grab the low hanging fruit" step during lunch time.
>
> END OF LUNCH
>
> Step 10: As soon as lunch has ended, you return to your equipment rack
> that you reloaded right before lunch. Immediately after lunch, perform a
> comprehensive verification of your morning configuration with a TCL script
> similar to the one provided at the very end of this e-mail. For more details
> on this TCL script, go to the NMC technical library. Once you have performed
> your comprehensive verification, "grab the low hanging fruit" configuration
> sections in your lab. Perform all sections in the lab that you feel very
> comfortable with. There is one exception to this suggestion: Keep all
> Security/ACL based tasks towards the end of the lab. These types of tasks
> can create additional complications of configuring and verifying the
> non-security/ACL related tasks. Remember your experience with the Catalyst
> VLAN ACL's and their impact on RIP routing in the CHECKiT practice lab you
> performed last Monday.
>
> TOTAL ELAPSED TIME FOR STEP 10/GRABBING THE LOW HANGING FRUIT: 90 minutes
>
>
> Step 11: THE MOMENT OF TRUTH/THE MOMENT OF RECKONING!!!!! At this moment
> in your Exam, you have performed all of the configuration tasks you felt
> comfortable with. You now must go back and perform all tasks you have
> skipped. The big question will be, how much of the Exam have you skipped up
> to this moment? Is it 10%, 20%, 40%, 60%? It is at this moment, when you
> know what chances you have at passing the Exam. For configuration sections
> that you have skipped and have confused you, apply your Desperation
> Checklist to these topics. See the Desperation Checklist in the NMC
> Technical Library. Remember to use the +univercd and +122newft search
> options. For more details, see Appendix C of the NMC Technical Library.
>
> Step 12: Perform any security related tasks last. At no later than 45
> minutes before the end of your Exam, save all of your configurations, reload
> your routers and check your work!!!!
>
> I hope these points are of some use to you. They are a general
> compilation of steps that our students have applied over the last 7 seven
> years. You may want to apply a different strategy. Apply whatever strategy
> that you feel comfortable with. What is very encouraging is THAT YOU HAVE A
> DETAILED STRATEGY!!!! Many candidates do not have a well thought out end to
> end CCIE lab strategy.
>
> In closing, best of luck in your lab tomorrow. May your Checklists guide
> you well in your Exam, please consider all configuration options, and
> explicitly reflect on all configuration assumptions. You are one excellent
> CCIE candidate!
>
> If anything else should come to mind, I will e-mail it to you. I hope all
> is well.
>
> BEST OF LUCK!!!!!
>
> -Bruce
>
> Here is a a Sample Comprehensive Verification TCL Script:
>
> tclsh
>
> sh fram pvc | i ST
>
> sh atm ilmi-stat | i IF
>
> sh cdp neigh
>
> sh ip o n
>
> sh clns is-neigh
>
> sh ip eigrp neigh
>
> sh ip bgp summ | b ^Nei
>
> sh ip pim neigh
>
> sh dlsw peer
>
> sh ip ro | i
>
> sh ip bgp | i
>
> sh ipv o n
>
> sh bgp summ
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