Archive for July, 2011
In this short article we’ll take a look at Cisco IOS static multicast routes (mroutes) and the way they are used for RPF information selection. Multicast routing using PIM is not based on propagation of any type of multicast routes – the process that was used say, in DVMRP. Instead, router performs RPF checks based on the contents of unicast routing table, populated by regular routing protocols. The RPF checks could be classified as either data-plane or control-plane. Data-plane RPF check applies when router receives a multicast packet, to validate if the interface and upstream neighbor sending the packet match RPF information. For data-plane multicast, the packet must be received from an active PIM neighbor on the interface that is on the shortest path to the packet source IP address, or RPF check would fail. Control-plane RPF check is performed when originating/receiving control-plane messages, such as sending PIM Join or receiving MSDP SA message. For example, PIM needs to know where to send the Join message for a particular (S,G) or (*,G) tree, and this is done based on RPF lookup for the source IP or RP address. Effectively for PIM, RPF check influences the actual multicast path selection in the “reversed way”: it carves the route that PIM Join message would take and thus affects the tree construction. In both control and data-plane RPF check cases, the process is similar, and based on looking through all available RPF sources.
Updated with 18 Month Plan!
Not only have I updated the post below quite a bit, but I have also now put together a spreadsheet that you are free to download and customize to your liking. It includes both a 12-month plan that closely resembles what is listed below, but it also includes an 18-month plan on the 2nd tab that can be used by those who simply cannot devote as much time as I propose in the below post. Simply change the start date and the rest will cascade. Use this spreadsheet to be able to propose a very comprehensive plan to your boss if you are getting corporate-backing.
I often get questions in class or via email that go something like “I am just beginning my studies for CCNA Voice – do I really need a two year AAP subscription?” or “How can I best utilize INE’s products to attain the CCIE Voice exam”, or simply “Where should I start?”.
This document seeks to provide you with a detailed guideline to using each of the products that compliment INE’s complete Voice training program. This program structure has been designed under the realistic assumption that you may be able to dedicate roughly 4 days a week, with approximately 4 hours a day (16 hours a week) to some form of study (be it watching our lecture and demo-based VoDs, reading Cisco documentation and books found in our Recommended Voice Reading Book List, or practicing on lab equipment), and be able to span a total duration of roughly 55 weeks from the start of studying for your CCNA Voice exam, and progressing through the CCNP Voice exam, and finally onto being ready to sit for your first CCIE Voice Lab exam attempt. This works out to just around one year of studying, with around 4 weeks off. This could (and probably will) vary, depending on your schedule, as you will undoubtedly need to custom tailor this program a bit to your life. All-in-all, you are going to spend almost 900 hours. I realize that this is a very committed study schedule, and I also wholeheartedly realize the sacrifice involved to commit fully to such an undertaking, however know now that these are hours that you, later in life, will look back on and attribute to some of the most beneficial that you have ever spent in your professional career. So buckle-up, and prepare yourself for the ride.
Note: It is assumed that before beginning this regiment, that the candidate has already studied for and obtained the necessary CCNA (Routing and Switching) exam. If you have not yet completed this Cisco-prerequisite exam yet, we strongly recommend that you take our CCNA Associate Course – 640-802 first, and pass that required exam.
We’re pleased to announce that our recently announced, highly anticipated CCNP Voice course is available for both streaming and download from our global CDN. Containing everything you need to take and pass the five latest Cisco CCNP Voice exams (642-427 TVOICE v8, 642-437 CVOICE v8, 642-447 CIPT1 v8, 642-457 CIPT2 v8, and 642-467 CAPPS v8), this new course consists of 130 videos totaling over 85 hours of hands down the best CCNP Voice training on the market today. As an All Access Pass subscriber the online streaming version is included at no additional charge. You may also download it now for just $299 or as an All Access Pass subscriber you can download it for only $149.
Each of the 130 videos can be individually downloaded without the need to download the whole class. This will enable you to selectively load them onto any computer or mobile device and watch them at your leisure. Although we do not place any DRM on the files themselves we do limit each purchase to two downloads per video.
Check back often, as we will be adding new labs to our CCIE Voice Volume II Workbook in the upcoming weeks. Also, you may now purchase and schedule your Graded Mock Lab for a proper CCIE Voice assessment of your skills before actually sitting for the actual lab exam.
We’re pleased to announce that our recently announced, highly anticipated CCNA Voice course is available for both streaming and download from our global CDN. Containing everything you need to take and pass the CCNA Voice exam (640-461 ICOMM v8), this new course consists of 124 videos totaling over 70 hours of hands down the best CCNA Voice training on the market today. As an All Access Pass subscriber the online streaming version is included at no additional charge. You may also download it now for just $199 or as an All Access Pass subscriber you can download it for only $99.
Each of the 124 videos can be individually downloaded without the need to download the whole class. This will enable you to selectively load them onto any computer or mobile device and watch them at your leisure. Although we do not place any DRM on the files themselves we do limit each purchase to two downloads per video.
We hope to release our CCNP Voice course sometime early next week – complete with 130 additional videos, and over 85 additional hours of mostly hands-on demonstration along of course with some lecture, so check back often!
Brian Dennis and I attended Cisco Live! – Networkers this week, and both enjoyed the privilege of sitting down to talk privately with Yusuf Bhaiji (Program Manager over the entire CCIE program) and Ben Ng (Program Manager over the CCIE Voice track) for roughly 45 minutes. It was quite an enjoyable and spirited talk, and I believe it benefited both sides – our side to gain a better understanding of why some of the choices have been made, and theirs possibly to see things a bit more ‘through the eyes of the typical hard-studying student’. I would like to take a moment to jot down some of the highlights from our conversation, and then unpack them in a bit more detail, so that you may benefit from the open conversation.
I’ll jot down some very simple, high-level topics that were discussed during our conversation, and then unpack them in more detail in the following section.
- Upcoming changes to every CCIE Lab Exam
- Protecting the integrity of the CCIE certification
- Robust, matured results-based grading engine
- Heuristic logic embedded into task wording
- Accuracy and detail of lab score reports
- Cisco’s CCIE Lab Delivery System and virtualization for mobile labs
- No re-reads
- CCIE Voice
- Next blueprint version expectation
- Topics for current and next blueprint versions
- CCIE Data Center
- CCIE Storage grows up
- Reason behind Cisco.com CCIE Statistics web page being removed
We’re pleased to announce that the latest version of our 5 Day Live Instructor-Led CCIE Voice Bootcamp, which was held just two months back is now available for both streaming and download from our global CDN. The CCIE Voice 5 Day Bootcamp is one of the final steps in preparing to take your CCIE Voice Lab exam. In the videos, I describe the technologies you need to know for taking the CCIE Voice lab during live classroom technology lectures and hands-on demonstrations. Watch as I walk through lab-specific demonstrations and answers many student questions in a live classroom environment, finishing up with a lively 2 hour interactive lecture regarding the best strategies and tactics to take and pass the CCIE Voice practical lab exam.
The CCIE Voice 5 Day Bootcamp consists of 24 videos totaling just over of 20 hours live lecture and demonstrations. As an All Access Pass subscriber you now already have access to this content with unlimited online streaming. You also may purchase it as a standalone product, and can download it now for just $299 (All Access Pass subscribers are given the option to download it for a small additional fee of only $149).
CCNA Voice and CCNP Voice
As of these past two Friday’s, I’ve wrapped up recordings on our new CCNA Voice and CCNP Voice video-on-demand products, respectively. These videos are now in the hands of our full-time professional video production crew, who are working their magic on the files, and getting them rendered out to our three streaming resolutions of Low, High and HD, and uploaded to our CDN. Watch this blog for the announcement of exactly when these new products become active in your All Access Pass account, but we are expecting them to be ready in roughly 1 week and 2 weeks for the CCNA and CCNP Voice respectively. These two products comprise a total of over 160 hours of unique, best-in-the-industry content.
For a limited time we are publishing the Route Redistribution videos from our CCIE Routing & Switching Advanced Technologies Class for public viewing. These videos cover all aspects of Route Redistribution needed for the CCIE R&S Lab Exam outside of the scope of MPLS, and will also be useful for any engineers looking for more information on how the Route Redistribution process works.
Specifically these videos cover basic and advanced route redistribution configuration, verification, and troubleshooting, including how and why route redistribution loops occur, how to identify and fix loops related to both Administrative Distance and Metric, TCL scripting for reachability testing, route tagging, the IP Route Profile feature, how to use and interpret the debug ip routing output, and other related topics. Links the videos are as follows:
- Route Redistribution Overview – Runtime 0h 36m
- Route Redistribution Configuration & Verification, Connected Redistribution- Runtime 0h 22m
- OSPF External Path Selection, TCL PING Scripting – Runtime 0h 33m
- Routing Loops Overview, EIGRP Route Loop Prevention – Runtime 0h 55m
- Metric Based Routing Loops, Route Tagging – Runtime 0h 46m
- Administrative Distance Based Routing Loops, Debug IP Routing, IP Route Profile – Runtime 0h 58m
For technical questions about the topics covered in these videos please visit INE’s Online Community.
All of these videos and others totalling over 80 hours for the CCIE R&S ATC series are included in all of our All Access Pass subscriptions at just $159 per month, along with access to over 900 hours of other training videos that include, but are not limited to:
- CCNA Routing & Switching
- CCNA Security
- CCNA Voice
- CCNA Wireless
- CCNP Routing & Switching
- CCNP Security
- CCNP Voice
- CCIE Routing & Switching
- CCIE Security
- CCIE Voice
- CCIE Service Provider
As you may know I will be teaching new versions of our CCIE Security Advanced Technologies Class for Blueprint v3.0 and CCIE Service Provider Advanced Technologies Class for Blueprint v3.0 in the coming weeks. Specifically the CCIE Security Advanced Technologies Class will be running as a live online class from July 25th – July 29th 2011, with an estimated release date of August 5th 2011 for the videos. The CCIE Service Provider Advanced Technologies Class will be running as a live online class from August 29th – September 2nd 2011, with an estimated release date of September 9th 2011.
The purpose of this post is to solicit topic requests for both classes from students that will either be attending the classes live online, or watching the on-demand videos at a later date. If you have requests or suggestions please post them as a comment below. Note that in general both classes will be covering all topics that are within their respective CCIE blueprints. If you have something very specific you would like to see covered please let me know.
Also remember that Subscribers to the All Access Pass will have immediate access to the streaming videos as they become available, and can attend the live online sessions of CCIE Security ATC and CCIE Service Provider ATC at no additional charge. Seating is limited for the live class sessions, so contact firstname.lastname@example.org as soon as possible if you are interested in attending. Download versions of each of the classes will be available for purchase as a standalone product, or as a discounted upgrade for AAP subscribers.
Per an announcement made on the Cisco Learning Network today, the Core Knowledge sections of the CCIE Security and CCIE Storage Lab Exams have been removed.
Effective August 15, 2011, CCIE Security Lab Exam and CCIE Storage Networking Lab Exam, in all global locations, will no longer include the four open-ended Core Knowledge questions. The removal of Core Knowledge questions allow candidates to utilize the total lab time for configuration and troubleshooting. The total lab time will remain eight hours.