Posts from ‘CCNP’

Jan
24

Just ahead of our brand new CCNA Voice live online bootcamp beginning this Monday, I thought it might be nice to provide an easy-to-follow graphic for those starting out in Voice (or on any other Cisco networking track). This graphic was from last year, but remains quite easy to follow for each and every Cisco track.

Be sure you have a high resolution set if you wish to see the entire thing, otherwise scrolling may be necessary.

Click here for the Cisco Career Certification Path poster

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Oct
12

The BGP MED attribute, commonly referred to as the BGP metric, provides a means to convey to a neighboring Autonomous System (AS) a preferred entry point into the local AS.  BGP MED is a non-transitive optional attribute and thus the receiving AS cannot propagate it across its AS borders.  However, the receiving AS may reset the metric value upon receipt, if it so desires.

Previous versions of BGP (v2 and v3) defined this attribute as the inter-AS metric (INTER_AS_METRIC) but in BGPv4 it is defined as the multi-exit discriminator (MULTI_EXIT_DISC). The MED is an unsigned 32bit integer.  The MED value can be any from 0 to 4,294,967,295 (2^32-1) with a lower value being preferred.  Certain implementations of BGP will treat a path with a MED value of 4,294,967,295 as infinite and hence the path would be deemed unusable so the MED value will be reset to 4,294,967,294.  This rewriting of the MED value could lead to inconsistencies, unintended path selections or even churn. I’ll do a follow up article on how BGP MED can possibly cause an endless convergence loop in certain topologies.
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Sep
23

We have a new feature on our All Access Pass streaming video playlists that we believe will help tremendously help you in your studies – but we’ll leave you to be the judge of that. We have added the ability for you to save unlimited bookmarks (and take notes on those bookmarks) for each video playlist you have in your online, streaming All Access Pass. Please login to your members account, then navigate to one of the streaming video playlists in order to access the new bookmark feature (i.e. you won’t see it on the sample video playlists).

Here is a sample screenshot of the new feature in action. Click to see it larger.

By the way, one other important thing to note about this new feature is that if you take a bookmark, it is not specific to the streaming quality that you chose when saving the bookmark. So if you were watching in the “High” quality, and save a bookmark for a specific spot, you can always choose a different quality level (e.g. “HD”) and then click your bookmark, or vice-versa, to watch that bookmark at the different streaming quality. Also, you will be able to copy the links from those bookmarks, and send them to your peers studying with you, that also have an INE AAP membership, and they will be able to access that same spot to comment on something important that you found, and would like to share with them. You will find the appendix to the existing video URL very
similar to that of the way YouTube codes theirs, for easy use.

Enjoy, and be sure to tell us how you like the new feature and if or how it is helping you in your studies, in the comments section!

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Sep
01

A while back, in May, we asked you all what you thought of adding closed captioning to all of our videos, and your response – both in comments and private emails – was overwhelmingly positive. This functionality would not only provide better assistance for those with difficulty hearing, but also give everyone the incredible ability to search anywhere within any video for a particular topic or keyword that had been spoken about in the audio track, and immediately jump to that timecode spot in the video. This would every single minute of every video we have the ablility to be searched and subsequently accessed within just a few moments vs. having to watch the entire video over and over each time you wished to return to a particular spot in it for some remedial learning.

Well, you needn’t wait much longer.
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Oct
17

Well I finally did it!  After a year and half of studying practically every day I am happy to say I am CCIE #27143!  I am proud to say I failed the exam 4 times, I wear each one like a badge of honor.  And for $1,400 each, those badges are made of a rare gold/titanium/diamond composite material, they are beautiful.  My road to becoming a CCIE had many unexpected twists and turns.  I got my CCNA back in 2002.  I studied for 2 months and passed it on my 1st try, so I must be pretty darn good right?  Well in 2005 I decided to try for my CCNP.  I soon discovered I had let my CCNA expire, so I had to retake that first.  Within 6 months I passed the CCNA and all 4 CCNP tests, so I must be the man right?  Then I got my first real networking job and soon discovered that I was truly just a paper champion and had no clue how to design or configure anything.  I learned on the job and quickly got up to speed.

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Sep
18

When we ask students “what are your weakest areas” or “what are your biggest areas of concern” for the CCIE Lab Exam, we typically always here non-core topics like Multicast, Security, QoS, BGP, etc. As such, INE has responded with a series of bootcamps focused on these disciplines.

The IPv4/IPv6 Multicast 3-Day live, online bootcamp, and the associated Class On-Demand version seeks to address the often confounding subject of Multicast. Detailed coverage of Multicast topics for the following certifications is provided:

Cisco Certified Network Professional (CCNP)

Cisco Certified Design Associate (CCDA)

Cisco Certified Design Professional (CCDP)

Cisco Certified Design Expert (CCDE)

Cisco Certified Internetwork Expert Routing & Switching (CCIE R&S)

Cisco Certified Internetwork Expert Service Provider (CCIE Service Provider)

Cisco Certified Internetwork Expert Security (CCIE Security)

To purchase the live and on-demand versions of the course for just an amazing $295 – just click here. The live course runs 11 AM to 6 PM EST US on September 29,30, and October 1.

The preliminary course outline is as follows:

  • Module 1 Introduction to Multicast

Lesson 1 The Need for Multicast

Lesson 2 Multicast Traffic Characteristics and Behavior

Lesson 3 Multicast Addressing

Lesson 4 IGMP

Lesson 5 Protocol Independent Multicast

  • Module 2 IGMP

Lesson 1 IGMP Version 1

Lesson 2 IGMP Version 2

Lesson 3 IGMP Version 3

Lesson 4 CGMP

Lesson 5 IGMP Snooping

Lesson 6 IGMP Optimization

Lesson 7 IGMP Security

Lesson 8 Advanced IGMP Mechanisms


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Sep
01

Are you a CCNP or CCIE student looking to challenge your perfect knowledge of Catalyst switchport commands?

Take the latest SWITCH Command Recall exam by clicking the link below. Good luck – and let us know how you scored in the comments area of this post.

Remember to read, AND TYPE, very carefully! I failed my first attempt due to just plain sloppiness. :-(

SWITCH Command Recall Exam – L2/L3 Ports

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Aug
21

Our BGP class is coming up!  This class is for learners who are pursuing the CCIP track, or simply want to really master BGP.  I have been working through the slides, examples  and demos that we’ll use in class, and it is going to be excellent.  :) If you can’t make the live event, we are recording it, so it will be available as a class on demand, after the live event.    More information, can be found by clicking here.

One of the common questions that comes up is “Why does the router choose THAT route?

We all know, (or at least after reading the list below, we will know), that BGP uses the following order, to determine the “best” path.

bgp bestpath

So now for the question.   Take a look at the partial output of the show command below: Continue Reading

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Aug
15

One of the features students love in the INE 5-Day CCNP bootcamp is the frequent Exam Challenges that are presented to students. Have fun with this sample from SWITCH.

Q1: Examine the configurations shown and the topology. Identify three errors in the configurations.

Exhibit 1

Exhibit 1

SW1
interface range fa0/16 – 17
switchport trunk encapsulation dot1q
switchport mode dynamic desirable
no shutdown
channel-group 1 mode on
SW3
interface range fa0/16 – 17
switchport trunk encapsulation dot1q
switchport mode dynamic auto
shutdown
channel-group 3 mode active 

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Aug
14

In the first part of this series, we subdivided the processes of EIGRP into four discrete steps, and detailed troubleshooting the first two. This is taken from the 5-Day CCNP bootcamp:

  • Discovery of neighbors
  • Exchange of topology information
  • Best path selection
  • Neighbor and topology table maintenance

Let us now discuss path selection and maintenance troubleshooting.

We should all remember that we can view the topology table of EIGRP with the command show ip eigrp topology. Here we can see the successor routes (these are the best routes that are placed in the routing table) and we can see the second best routes, the feasible successor routes. These feasible successor routes are the key to the lightening fast convergence that EIGRP can offer us. When a speaker loses its successor, it can quickly install a feasible successor route in its place.

We need to remember the important rule of feasible successors. The advertised distance of the proposed feasible successor must be less than the feasible distance of the current successor route. This is actually a loop prevention mechanism.

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