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How to enable IPv6 support on a Cisco 3560 switch

If you have tried configuring IPv6 on a Cisco 3560 switch, you may have noticed the ipv6 commands aren't available by default. This often catches me when I am working on a new switch that has never had IPv6 enabled. I just had this happen tonight, so I figured I'd write a brief how-to with some background info thrown in.

Where are the IPv6 commands hiding?

Cisco 3560 switches have a feature called Switch Database Management (SDM) templates. There are various templates that can modify the allocation of system resources to better support different features. What does this mean? By default, a small catalyst switch is built to support 8 routed interfaces and 1024 VLANs. It's not generally used to route OSPFv3 and BGP (though, it can do that). So as a result, the system resources are evenly distributed among the various functions to accommodate a common set of tasks.

Use the Configure Replace command to speed up your labbing

I've been labbing quite a bit lately, working on Narbik's R&S workbooks, and I've been rebooting my rack after nearly every lab to clear things out. Well, I was perusing the Interwebs and a forum post reminded me of the config replace command. Sheesh! I wish I would have remembered that a few hundred reboots ago...

Even though I knew about this command, and have even included it in a blog post or two in the past, I had forgotten about it since I wasn't using it all that often. So, just in case someone else out there has forgotten about it, I figured I'd do a quick write up demonstrating the command in action and hopefully jostle some memories (or just help me remember if I forget it again).

Here is a 1841 router that used to be R5, but I changed it's hostname to Testing and did a no shutdown on all it's interfaces. Follow the config below for the usage:

CCIE Boot Camp Review - Micronics (Narbik's) 12-Day

Studying for your CCIE? If you are, then you might be planning to take a boot camp to help you prepare. A lot of candidates use boot camps to help them prepare and there are many choices available to routing and switching candidates in particular. If you haven’t taken a boot camp yet and are still considering which one to attend or whether or not to attend one at all, then this blog post is written for you.

My journey to become a CCIE

I've been interested in technology for as long as I can remember. From my early beginnings of learning how to navigate the DOS command line interface on my dad's computer while he was off at work, to building my first PC (with 8Mb of RAM!). I've always had an interest and a knack for this stuff.

Over the past decade, my interest in networking technology has grown significantly. In 2001, I earned my CCNA while working at Cisco (on contract) and a few years later installed my first 6509 in a global financial company. Several certifications followed down the road including the CCNP and CCAI. I now teach Cisco curriculum part time while working as a Senior Network Engineer for a mid-size enterprise. My drive to learn has never stopped, in fact it just keeps growing the more I am exposed to this stuff.

The time has come to take it to the next level.

Several months ago I made the decision, after some serious research and discussions with my wife, to begin studying for the CCIE Routing & Switching Exam. I started by researching and reading everything I could find regarding the exam - Cisco's official exam page, other blogs that detail how they approached the exam, podcasts talking about the exam, etc. I spent a good month reviewing my options before I finally made the decision that absolutely, without a doubt I am going to go for it - no matter what it takes.

I've written this blog post to share my experience so far and hopefully help others in a similar situation to make the go-no-go decision.

CCIE Salaries

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It's been about a year and a half since I posted a CCIE Salary blog post. The data is readily available with some searching, but I figured I'd post it here for reference.

Much of this data is collected based on individuals filling out questionnaires and surveys. The sample sizes aren't huge, but then again, there aren't that many CCIEs on the planet. As always, there are certainly some outlying data points that would skew this data set if included. I've heard of contractors with CCIE certifications making several hundred thousand a year. Those types of positions are few and far between, and for those of you landing gigs like that - congratulations! So without further adieu, here's the data..

APC 9211 MasterSwitch Password Reset Procedure

I recently purchased an APC 9211 MasterSwitch PDU for my home lab. I wanted the ability to remotely power up and power down devices so I can lab while on the go and not have equipment running 24/7. This specific device was acquired from a liquidator on ebay for less than $100 USD, which compared to the newer Smart PDUs on the market is a fraction of the cost.

This device has been discontinued by APC for quite some time, however these things are rock solid and so far this unit has been performing quite well. However, there was one problem when I tried to manage it... the previous owner didn't clear the password and I was locked out.

Frame Relay for the R&S CCIE Candidate - Session Notes

Attended the Frame Relay Session for R&S CCIE Candidates Wednesday morning. The instructor, Johnny Bass, is fast becoming one of my favorite teachers of CCIE material. His no-BS straight to the point style is great for covering CCIE material. Like yesterday’s IPv6 session, I jotted some notes and wanted to share them here.

Key points about LMI
Three types of LMI –
Gang of four, then ANSI (T1.617 Annex D, and then ITU (Q.933 Annex A)
LMI type needs to match Frame relay switch

Virtual Circuits
    Switched Virtual Circuits (SVC) – temporary, like a phone call. Setup then torn down
    Permanent Virtual Circuits (PVC) – nailed up, appears like a permananent connection

Layer 3 to layer 2 mapping

IPv6 for the CCIE R&S Candidate - Session Notes

Today I attended the IPv6 for CCIE R&S session presented by Johnny Bass, CCIE #6458 and Cisco 360 master instructor. Totally awesome presentation! I jotted some notes and figured I’d post them here to share.

All the content in the session (BRKCCIE-9592) is regarding the R&S 4.0 version blueprint. “If it’s not in the blueprint, it’s not in this session”

Different Addressing Types

  • 2000::/3 – Global Unicast
  • FC00::/7 – Unique Local Unicast
  • FE80::/10 – Link Local Unicast
  • FF00::/8 – Multicast

Prefix Subnet Interface/Node ID
32 to 56 bits 32 to 8 bits 64 bits

Note: The interface ID can be either EUI-64, use Privacy Extensions (RFC 3041), or locally configured.

Mobile CCIE Labs

If you are planning on going for the CCIE R&S or Security and you live in a country where the lab is not administered, it can be a challenge to get to the testing center, let alone pass the exam! Cisco has had a program in place to combat this very issue for quite some time called the Mobile CCIE Lab. The program allows you to register to take the lab exam in your city or one closer to you than in a foreign country. The benefits here, of course, are potential savings in travel expenses and missing less work ( even though you might not be missing it).

For a complete schedule of where and when the lab will be available, or if you are interested in learning more about this program, check out the official Mobile CCIE Lab page at Cisco's website.

https://learningnetwork.cisco.com/docs/DOC-3224

CCIE Wireless Update Scheduled

Cisco's CCIE Wireless exam is scheduled for a refresh later this year. Beginning November 18, 2011, the Version 2.0 blueprint will go into effect ushering in a new era of wireless exam topics. 

The new written exam topics are much more in depth and spelled out than they used to be. The old exam outlines seemed to be high level bullets, whereas the new exam topics are very detailed and specific. The most notable update can be summarized in one word: Troubleshooting.  The word troubleshoot shows up over 40 times in the new Lab objectives whereas there are only 5 occurrences of the word in the old objectives. Not exactly subtle...

CCIE Sample Questions

Ever wonder if you have what it takes to pass the CCIE R&S Written Exam? Well, if you are looking into taking the exam, you have most likely visited Cisco's site dedicated to the cert. However, it's easy to overlook a freebie Cisco gives to potential CCIE exam takers - Free Practice Questions.

There are only a handful of them to give you an idea for the level of difficulty you may encounter on the written exam, but every little bit helps. Here's the link for all who are interested: CCIE Routing and Switching Sample Questions

Virtual Switches in CCIE Lab

Cisco has added virtual switches to their CCIE Lab exam. Previously, only routers were simulated in the troubleshooting section, but now layer 2 switches have been added. And if you are saying to yourself right now, "I thought there was real equipment in the CCIE Lab" - you thought right and there is. However, the exam is made up of two sections, the 2 hour troubleshooting part (on virtual equipment) and the 6 hour configuration part (on real equipment). 

CCIE & CCNP Salaries

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After the surprise wore off from seeing how low salaries for IT managers can go, I started to wonder how much of a bump in salary the average network engineer would get with achieving a CCIE. This is the only current survey I could find, I searched and found a bunch of data from 2008, 2004, and older. 

So, for supposedly recent CCIE data, here ya go...

Free CCIE Training Videos

The team over at Internetwork Experts (INE) has assembled a great set of free training videos that cover a wide range of topics, available via this link:

http://www.ine.com/free-ccie-vseminar.htm

Their latest and greatest will cover LDAP Synchronization and Authentication in Unified Communications and will be broadcast on Dec 14. Sign up if you want to watch it when it's first broadcast, or if you wait, it will probably be posted on that page like the others.

Also, if you haven't given it a try yet, check out the free 60 minute login over at CBT Nuggets:

https://secure.cbtnuggets.com/trial

CCIE R&S Becomes More "Real World"?

Interesting statement...but one that's direct from Cisco. In October, CCIE R&S undergoes a "real world" revision to make the skills more applicable to day-to-day jobs. Interesting quote from Maurilio Gorito (he was my proctor "back in the day"):

Q: Will it be harder to pass when the new exams go live?

A - MG: Since the focus of CCIE R&S certification has shifted to job readiness, candidates with less job experience may find the exams more difficult . On the other hand, some candidates may find the written exam easier since it is less focused on equipment specs and more on the real-world job tasks of networking experts.

The full scoop can be found here.

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Dr. Radut