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Archives for September 2013

Sep 20, 2013 By Jared Heinrichs Leave a Comment

Mitel Unified Communicator Advanced has stopped working error and FIX

Are you getting the error: Mitel Unified Communicator Advanced has stopped working. A problem cause the program to stop working correctly. Windows will close the program and notify you if a solution is available error?

Here’s what the error looks like:

Mitel Unified Communicator Advanced has stopped working

The most likely reason you are getting this error is because of a corrupt Mitel Profile. This can happen for many reasons but the main reason for this message is after you apply an upgrade from a previous version. You can most likely just delete the profile but to be on the safe side follow these steps:

You will need to:

  • Remove the Mitel Software
  • Delete your Mitel Profile
  • Re-install the Mitel
  • Run Mitel App and let it build a new profile

To delete your Mitel profile on Windows Vista and higher go to:

C:\users\%user%\AppDate\Roaming

You can either delete the folder or rename it to something else. In this example I renamed it “OLD-Mitel”. When you run the UCA the next time it will re-create the folder with the needed files.

image

Filed Under: Networking

Sep 16, 2013 By Jared Heinrichs Leave a Comment

CCNA – ICND1 100-101 – TCP/IP and OSI Network Model Notes

My notes from Wendel Odems CCNA ICND1 100-101 study book. These come from chapter 1

TCP/IP and OSI Network Model

  • A network model refers to a comprehensive set of documents that define how a network should work
  • Protocols are a set of logical rules that devices must follow to communicate
  • Physical requirements for networking define the voltage and current levels used on a cable when transmitting.

Main networking models

There are two main networking models that people refer to when talking about networking models

  • OSI – Ended up “loosing” the race but we almost always use it’s layers when describing networking functions. It was made by the “International Organization for Standardization”.
  • TCP/IP – Ended up “becoming” the standard that every single computer, tablet and phone now uses. It was made at Universities for a DoD contract.

Overview of the TCP/IP Networking Model

  • TCP/IP (like OSI) both DEFINES and REFERENCES a large collection of protocols. The protocols allow devices like computers to communicate.
  • To define a protocol, TCP/IP uses documents called Requests for Comments (RFC)
  • To avoid repeating work, it will sometimes refer to standards or protocols created by other groups
    • IEEE Defined Ethernet LANS
    • TCP/IP does not define Ethernet in a RFC, rather it refers to IEEE Ethernet as an option
  • Each Layer includes protocols & standards that relate to that category of functions

image

TCP/IP Protocols and Examples

This isn’t an exhaustive list by any means…

  • Application – HTTP, POP3, SMTP
  • Transport – TCP/UDP
  • Internet – IP
  • Link – Ethernet, PPP, T1, T3

TCP/IP Application Layer

  • Provides services to the application software running on a computer
  • Application layer does NOT define the application itself. Rather it defines the services that the application needs. Eg. There are many Web browser application on the market. Internet Explorer, Firefox, Safari and Chrome. The Application layer does NOT define these applications. It defines how web servers and web browsers talk to each other.

Basic HTTP Logic

image

Let’s go over the diagram above:

1.) HTTP header gets sent. The header includes a “GET” message. If there is no file in particular the web server will assume the computer is asking for the default webpage

2.) The message returns a return code (200) which means “OK”. The second message includes the first part of the requested file.

3.) Another message gets sent, but this time without a HTTP header. HTTP transfers data by sending multiple messages.

*NOTE* – HTTP won’t waste space by sending repeated HTTP headers!

 

TCP/IP Transport Layer

  • Transport Layer includes a smaller # of protocols than the application layer
  • Two most common protocols are Transmission Control Protocol (TCP) and User Datagram Protocol (UDP)
  • Transport layer provides services to the application layer that resides one layer higher in the TCP/IP model. eg TCP Error Recovery

TCP/IP needs a mechanism to guarantee delivery of data across the network. To recover from errors , TCP uses the concept of ACKNOWLEDGEMENTS.

image

Let’s explain the example a little bit more:

  • TCP uses sequence #’s with each message. When there was an issue, the client realizes that data is missing. It requests SEQ2 again.
  • HTTP doesn’t need to headers each time at APPLICATION LAYER because HTTP relies on TCP to ensure delivery of all the data that is sent.

The last point bring up an example of one layer using another layer for services. This allows each layer to be optimized for the task at hand.

Same Layer & Adjacent Layer Interactions

Same Layer Interaction (Different Computers)

  • Two computers use a protocol (agreed set of rules) to communicate with the same layer on another computer
  • The protocol defined by each layer uses a header that is transmitted between the computers to communicate what each computer should do.
  • Header info added by the layer of the sending computer is processed by the same layer of the receiving computer.

Adjacent Layer Interaction (On the Same Computer)

  • On a single computer, one layer provides a server to a high layer
  • Software or hardware that IMPLEMENTS the high layer requests that the next lower layer perform the needed function.

Filed Under: Cisco Certification

Sep 10, 2013 By Jared Heinrichs Leave a Comment

Ford Mustang 2014 GT 5.0 Review

I must say the The Mustang 5.0 engine pays homage to the original 5.0, delivering 420 horsepower and 390 lb.-ft. of torque. The powerplant features twin independent variable camshaft timing (Ti-VCT), an aluminum engine block and cold-air induction to help improve power. You will not be disappointed with how much horsepower this engine will produce.

But that’s only for starters. The 5.0 also has a compression ratio of 11:1 and cylinder heads designed to optimize airflow. Every part under the hood, including the high-energy coil- on, plug design, is designed to work in harmony. This lets the muscular engine breathe efficiently and deliver 100 percent exhilaration every time you hit the gas. And then there’s the exhaust delivering a distinctive throaty roar.

HID Headlamps have some intense power. The HID headlamps feature a gas bulb that lasts longer and produces a whiter, brighter, stronger light than conventional headlamps. Standard on all Mustang models.

Electronics Package includes:

  • Navigation System with SiriusXM Traffic and Travel Link (includes 6-month complimentary subscription*)
  • HD Radio™ Technology
  • Dual-zone electronic automatic temperature control

*SiriusXM Satellite Radio, Traffic and Travel Link subscriptions sold separately or as a package after trial expires. SiriusXM Traffic and Travel Link service available in select markets. Subscriptions are governed by SiriusXM Customer Agreement; see www.siriusxm.com. Sirius U.S. Satellite Service available (only to those 18 and older] in the 48 contiguous U.S.A. and D.C. Sirius, XM and all related marks and logos are trademarks of Sirius XM Radio Inc.

The available Shaker Pro Audio System also includes an in-dash single-CD/MP3 player and eight speakers and one subwoofer. The sonic boom from this system comes courtesy of the trunk-mounted subwoofer. A unique mounting enclosure keeps the subwoofer out of the way to maximize the amount of useable trunk space. The Shaker Pro Audio System is optional on Mustang GT Premium and Shelby GT500.

To add to the wow factor, the engineers installed ground effect lighting. Installed under the mirrors, the LED lights shine on road a perfect mustang logo.

Here’s some of the pictures I captured of the car:

20130825-IMG_3188 20130825-IMG_3275 20130825-IMG_3283 20130825-IMG_3288 20130825-IMG_3293 20130825-IMG_3308 20130825-IMG_3323 20130825-IMG_3337

Filed Under: Review

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