Cisco Blogs

Cisco Blog > Perspectives

SDN – A Cisco Champion’s perspective

Software defined networking (SDN for short) is going to be an important technology that will change the way we do networking. But what is SDN today and even more important, what is it going to be?

When you start reading about SDN as a network engineer, you ask yourself what your future job will look like. Will you still be a network engineer as we know you today, or a network developer, with a focus on scripting and programming your network? In my opinion, the reality will be somewhere in between. But no one can tell you today what impact SDN will have on your daily work tomorrow. Read More »

Tags: , , , ,

4+1 Practices for Effective Lifelong IT Learning (Part 2)

Happy with how you go about learning, or wish you could learn more, learn more quickly, and even just do it? Today’s post continues what was begun in the previous post, namely a list of good practices to consider to improve how you go about learning throughout your IT career.

The previous post set up the issues, and made two broad suggestions:

  • Continuously learn more about learning and study, practice what you learn, and improve
  • Research and improve note-taking skills for each type of notes you take

Today’s post adds two more practices to the list, with a renewed request that you add your suggestions as well. Today, we’ll examine one type of short-term tactical goal setting with SMART goals, plus a much-neglected study activity: thinking about what you already studied.

3) Start Each Week w/ Achievable SMART Goals

Have you ever finished a week with this thought?

“I failed to make as much progress as I would have liked to make with what I’m learning right now.”

Many factors, both controllable and uncontrollable, affect whether we meet our goals. This next practice helps us achieve our short-term goals by setting and reviewing SMART learning goals weekly, every week.

WO-Cisco-2015-03-fig4 Read More »

Tags: , , ,

Is Your Network Cloud Ready?

Is your network cloud ready? We at NetCraftsmen, a Cisco Gold Partner, are hearing this question more often. Let’s discuss how to tell if your network is cloud ready, and how to get there if you’re not. Even if your organization already has a public cloud presence, I hope you’ll find some ideas in the following material.

Is Your Network Cloud Ready

Read More »

Tags: , , , , , ,

High performance backup storage: Cisco UCS C3160

I don’t know about you, but the thought of using a “server” as a “backup storage” resource may sound a bit odd at first. After this post, you may change your tune. Let’s dig into this a bit.

I’m sure you’ve heard of the Cisco UCS Unified Computing line of servers and their associated Fabric Interconnect technologies. Additionally, you may know that there are M-Series, B-Series and C-Series form factors for the various configuration options that are in high demand for the modern data center. Which reminds me, you should check out this PDF poster of all of the current UCS components; it is my go-to resource to see how the different UCS offerings can be arranged and interconnected.

So let’s zoom in on the Cisco UCS C3160. It has a few key specifications that caught the interest of a number of keen architects in my extended professional networks which led to this notion of putting the C3160 in place as high performance and high capacity backup storage system. The most interesting specification is that the C3160 can hold up to 60 small form factor drives. Two additional small form factor SSD drives are in place for the boot volume. What this means is that these 60 drives can be used as a backup storage repository.  RAID levels are available on this configuration as well, in particular the Cisco 12G SAS Modular RAID controller supports RAID levels 0, 1, 5 and 6. I’d recommend RAID level 6 for this large of a storage resource in terms of drive capacity (up to 4 TB) and the sheer number of drives coupled with rebuild times and have some spares in place. That being said, there is easily over 200 TB available for backup storage in one C3160 server. Let’s take the following figure:

Ciscoblog-April 2015-FigA

The C3160 provides large amounts of backup storage with excellent connectivity

Read More »

Tags: , , , ,

4+1 Practices for Effective Lifelong IT Learning (Part 1)

The debate of what we should be learning seems to be a more frequent topic today. For instance, there’s been a long-standing question for each new networker: after learning a little about routing and switching, does a relative newbie dive deep into route/switch? Move on to learn voice? Or security? Data Center? Or for emerging technologies like SDN, should we learn SDN as defined by the Open Networking Foundation, or ACI, or both? Should we build programming skills to become network programmers, or programming for network automation, or stick with traditional config/verify/troubleshooting skills?

So we can talk to coworkers and discuss/argue about what technologies we should learn… but then we all seem to agree that learning throughout our careers is hugely important. (In fact, the day I was wrapping up this blog post, the Cisco Champion podcast included several people making that very same point, in agreement.) And then we stop talking about learning, because we all agree. We agree that learning is important, and don’t talk about how to learn effectively.

Our long-term career prospects depend in part on learning about existing and emerging technology. But how good are our learning skills? Are we happy with the results? How can we get better at learning?

Today’s post begins a 2-part post that offers a top 4+1 list of answering that last question: how do we get better at learning? Rather than us just agreeing that learning is important, and moving on, let’s treat the process of learning as an important process, and learn how to do it better. Read More »

Tags: , , ,