Cisco Blogs


Cisco Blog > Perspectives

IoT, The Oppressed Project

IoT, The Oppressed Project

We are now in the era of IoT “Internet of Things”. It’s a concept that not only has the potential to impact how we live but also how we work. And as things become more connected, people become more concerned about their security and privacy. I have gone through a lot of technical conversation about IoT and realized how paranoid people are about their connected devices and appliances.

Why paranoid?

The future Internet will be an IPv6 network interconnecting traditional computers and a large number of smart objects or networks such as Wireless Sensor Networks (WSNs). By 2020 there will be over 26 Billion connected devices and some estimate this number to be more than 100 Billion connected devices. This includes mobile phones, Smart TVs, washing machines, wearable devices, Microwave, Fridges, headphones, door locks, garage door openers, scales, home alarms, hubs for multiple devices, remote power outlets and almost anything else you can think of like your car and airplane jet engines.

Ways of securing the traditional Internet networks have been established and tested. The IoT is a hybrid network of the Internet and resource-constrained networks, and it is, therefore, reasonable to explore the options of using security mechanisms standardized for the Internet in the IoT.

What will we do about managing the usernames and passwords of every single connected device? What about our privacy? What if some hacker was able to control our video cameras? More and more questions are being asked and more security concerns are being escalated. Do we really have to be paranoid about IoT? Read More »

Tags: , , , ,

Summary: Use Rate-Limiting to Alleviate Link Saturation

Here’s the scenario: you have a remote branch office in Miami that has been running smoothly for months. Today you are getting complaints from the site that relate to phone calls dropping, email and network connectivity being intermittent. Management is pushing your team to get it fixed.

You start by looking closely at the WAN circuit going into the site. You use a program that Cisco introduced called NetFlow. By using this program you are able to determine that the WAN link is being saturated by a particular server to server file transfer. You need a quick fix to this issue. You could go with QoS but that could take some time and input from the site to gather statistics on the critical traffic. Instead you decide to utilize Rate-Limiting on the WAN interface.

Tags: #CiscoChampion, #CiscoEnterprise, #NetworkEngineer

Read the full article here.

Tags:

#CiscoChampion Radio S2|Ep 5. VersaStack

CiscoChampion2015200PX#CiscoChampion Radio is a podcast series by Cisco Champions as technologists. Today we’ll be talking with Cisco Technical Marketing Engineers Jeffrey Fultz and Shiva Shastri about Cisco VersaStack. Our Cisco Champion guest host is Enda Cahill.

Listen to the Podcast.

Learn about the Cisco Champions Program HERE.
See a list of all #CiscoChampion Radio podcasts HERE.

Cisco Champion SMEs
Jeffrey Fultz, Cisco Technical Marketing Engineer
Shiva Shastri, Cisco Technical Marketing Engineer

Cisco Champion Guest Hosts
Enda Cahill, @Saineolai, Technical Director

Highlights
What is VersaStack?
VersaStack and UCS Director
What makes the VersaStack different?
Why the name VersaStack?
VersaStack and storage Read More »

Tags: ,

Cisco UCS Mini – a deep dive

In September 2014, Cisco launched the UCS Mini for what they dubbed “Edge-Scale Computing”. The UCS Mini offering is a stripped down version of the classic UCS system with Fabric Interconnects. To learn about classic UCS, click here.

In this post I will go into some details about the UCS Mini that I’ve learned over the past few months. The information here will assume you have the basic knowledge about what the UCS Mini is and what components are involved. If you need a refresher, I’ve written up a small introduction here.

Let’s dive in.

Fabric Interconnect

The UCS FI 6324 is the same size as the UCS I/O Modules (IOM 2208XP, 2204XP, etc) and fits in the back IOM slot of the UCS Chassis 5108 (version 2).

ucs-fi-6324-breakdown Read More »

Tags: , ,

#CiscoChampion Radio S2|Ep 4. VIRL

CiscoChampion2015200PX#CiscoChampion Radio is a podcast series by Cisco Champions as technologists. Today we’ll be talking with Cisco Distinguished Engineer Joel Obstfeld about VIRL. Our Cisco Champion guest hosts are Brad Haynes and Scott Morris.

Listen to the Podcast.

Learn about the Cisco Champions Program HERE.
See a list of all #CiscoChampion Radio podcasts HERE.

Cisco Champion SMEs
Joel Obstfeld, Cisco Distinguished Engineer

Cisco Champion Guest Hosts
Brad Haynes, @GK_bradhaynes, Client Solutions Specialist
Scott Morris, @ScottMorrisCCIE, Senior Instructor

Highlights
What is VIRL
VIRL Wow features
VIRL and CML
Who will benefit from VIRL
Deployment scenarios

Resources
http://virl.cisco.com/

Tags: ,