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Teracom newsletter for March: Tutorial: IP Packets, Routers and Addresses, BOOT CAMP 2-for-1 special SILICON VALLEY March 27-31, new course Fundamentals of Voice over IP$20 off, free bonus course Fundamentals of Voice over IP with CTNS, seminar schedule through August and more!
NEWSLETTER
MARCH 2017
Go to Teracom home page scheduled public seminars, instructor-led telecom training, networking training, telecommunications training, VoIP training, MPLS training courses self-paced DVD video courses telecom, datacom, networking, IP, MPLS, wireless, training, learning, courses, online online certification and testing info on bringing any Teracom seminar to your location for a private team training session telecommunications training book, networking book Free online tutorials (graphic/text and VideoTutorials), plus knowledge evaluation quizzes, archived newsletter articles and more!
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Teracom newsletter for March!
 •  Tutorial: IP Packets, Routers and Addresses
 •  BOOT CAMP: SILICON VALLEY March 27-31  2-for-1 special
 •  New Course!   Fundamentals of Voice over IP   Launch special – $20 off
 •  CTNS Upgrade!  Free bonus course Fundamentals of Voice over IP – $49 value
 •  Seminar Schedule through August
BOOT CAMP: SILICON VALLEY March 27-31 2-for-1 Special
Our famous core training Course 101 Telecom, Datacom and Networking for Non-Engineers is scheduled in conjunction with Course 130 Understanding Voice over IP to make BOOT CAMP.
 
And in a shameless attempt to fill a few more seats, we're offering a 2-for-1 special: two can attend for the price of one. Simply register and mention "2-for-1 special" and the name of the second person in the comments field. Or call us: 1-877-412-2700.
 
boot camp
Seize this opportunity to get up to speed and fill in the gaps
You'll gain an advantage with solid knowledge of telecom, datacom and networking plus VoIP, SIP and project management.
You'll be more effective and less frustrated, understanding the ensemble of communications technologies, the jargon, buzzwords and how it all works together.
learn more
This is an easy sell with management.
Your increased efficiency, productivity and informed decision-making will repay the cost of the training many times over. Plus, you benefit from a special discount, and get the free bonus Online Courses, CTNS and CTA Certifications, making it an unbeatable value.
 
Attending both courses as the 5-day BOOT CAMP is totally optional. You are welcome to attend one course, or the other, or both, as best meets your needs. But with the low incremental cost and wall-to-wall training, BOOT CAMP is a great opportunity.   how to register
 
To take advantage of the 2-for-1 special, simply register and mention "2-for-1 special" and the name of the second person in the comments field. Or call us: 1-877-412-2700. Cheers!
 
interesting side trips you can do in the area
register for CTNS
New Online Course: Fundamentals of Voice over IP
Course 2221 Fundamentals of Voice over IP - Introduction
Launch special:
Get this course for only $29 - save $20
Use coupon 1260 at checkout
Fundamentals of Voice over IP is a solid introduction to everything Voice over IP.
You'll learn the fundamental ideas and principles of VoIP and SIP, as well as all of the jargon and terminology - and what it all means!
This course can be taken by anyone who needs to get up to speed on all things VoIP.
You will gain career-enhancing knowledge of the components and operation of Voice over IP systems, and learn what all of the jargon and buzzwords mean.   more info
CTNS Upgrade: Free bonus course Fundamentals of Voice over IP $49 value
TCO CTNS Certification Package
The CTNS Certification Package is six online telecom training courses based on our acclaimed instructor-led training, covering the core knowledge needed in the telecom business today – plus CTNS certification from the Telecommunications Certification Organization to prove your knowledge.
And... for a limited time, enjoy a free upgrade!
Get the new Course 2221 Fundamentals of Voice over IP as a free bonus with the CTNS Certification Package. instructions for getting the free bonus course, a $49 value
Tutorial: IP Packets, Networks and Routers
The Internet Protocol (IP) is part of the TCP/IP suite of protocols developed by the US military and now used on the Internet, on carrier networks and on business systems. IP is a network protocol, defining the network address and packet format.
IP was originally the Inter-net protocol, developed beginning in the late 1960s as a common format for communication across existing networks that used various different packet formats. Subsequently, IP took over, and today there aren't really any different kinds of packet networks, pretty much all packet networks use IP as their native format.
ip packet and its fields
IP Packet
The term packet means a segment of data, the “payload” in the diagram above, with network control information added on the front. The data can be literally anything: a piece of an email message, a piece of a web page, digitized voice for telephone calls, video in all its forms, Google maps data, anything.
A packet network is formed by connecting circuits going to different locations with network equipment called routers. Routers relay or forward packets from an incoming circuit to an outgoing circuit. Knowing which outgoing circuit to forward a packet on is the routing part of the story.
The IP address identifies the final destination of a packet. This information is used by routers to decide where to go next at each router.
Communication from one network user to another is implemented by the sending user creating a packet and transmitting it to the closest router. The router forwards the packet to another router, to another router, and so forth, and the last router in the chain finally forwards the packet to the destination user.
Many times, one of these “users” is a server, for example, a web server, an email server or a video server. For a Voice over IP phone call, both users have IP telephones.
The header is the “network control information” pasted on to the front of the segment of data to be sent over the network. Another way of saying this using jargon is that the segment of data is encapsulated in IP.
The diagram illustrates the elements in the IP version 4 (IPv4) header including the Don't Fragment (DF) field and the More Fragments (MF) field which are used to control whether the block of data to be sent over the network can be divided into a number of segments, one segment per packet, or not, and whether this has actually happened or not.
The most interesting part of the IP header is the source (sender) IP address and the destination IP address.
IP is published as military standard MIL-STD-1777, and updated in various Request for Comment (RFC) documents which are the Internet version of a standard. IP version 4 with 32-bit addresses is currently in use. IP version 6 (IPv6) with 128-bit addresses is next.
Using IP implements a connectionless network service, which means that at the network level, there is no communication with the receiver. Packets are sent off on the network to fend for themselves. There are no guarantees that the packets will be delivered. There is no error check on the data being carried in the packet. A higher-level protocol is required to perform error checking and to deal with packets that are not delivered. This is usually implemented with TCP... but that's a different lesson.
Source: Since IP packets and addresses are part of the fundamentals of telecom, this discussion is included in most of Teracom's training courses, including:
Instructor-led training Course 101, Telecom, Datacom and Networking for Non-Engineers
Online CTNS and CIPTS Certification Package Course 2213, IP Networking
DVD-Video Course V3, Fundamentals of Datacom and Networking
Textbooks Telecom 101 and Telecom, Datacom and Networking for Non-Engineers
Public Seminar Schedule through August 2017
March 27-29 Santa Clara CA 101 Telecom, Datacom and Networking for Non-Engineers
March 30-31 Santa Clara CA 130 Understanding Voice over IP
March 27-31 Santa Clara CA BOOT CAMP (Course 101 + 301, 5 days)
April 26-28 New York NY 101 Telecom, Datacom and Networking for Non-Engineers
May 9-11 Atlanta GA 101 Telecom, Datacom and Networking for Non-Engineers
June 6-8 Orange County CA 101 Telecom, Datacom and Networking for Non-Engineers
July 11-13 Dallas TX 101 Telecom, Datacom and Networking for Non-Engineers
August 21-23 Washington DC 101 Telecom, Datacom and Networking for Non-Engineers
August 24-25 Washington DC 130 Understanding Voice over IP
August 21-25 Washington DC BOOT CAMP (Course 101 + 301, 5 days)
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