Hill Associates - Living in a connected world : Internet

PodSnacks: IEEE 802.11g (54 Mbps)

Posted Monday, November 03, 2008 6:00 AM by mgilbert :: 0 Comments
Filed under Wi-Fi, PodSnacks, Internet, Wireless, Telecommunications, Technology, Physical Layer, Data Communications, LAN
Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/802.11g.mp3

Today we'll continue our series looking at four of the transmission options for Wi-Fi wireless LANs by looking at IEEE 802.11g . This is the most commonly found Wi-Fi transmission rate today. As I prepared this snack for posting, I realized that Mark Read More...

PodSnacks: Internet Service Provider (ISP)

Posted Monday, October 27, 2008 6:00 AM by mgilbert :: 0 Comments
Filed under Industry Analysis, PodSnacks, Internet, Broadband, Telecommunications, Technology, Data Communications
Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/isp.mp3

Since we've been talking about various Internet -related concepts, and since this question came up in my class last week, I thought I'd tackle the term Internet service provider (ISP). Most of us probably know what this is and, if we don't, Read More...

PodSnacks: Primary Rate Interface (PRI)

Posted Friday, October 24, 2008 6:00 AM by mgilbert :: 0 Comments
Filed under PodSnacks, Internet, Telephony, Convergence, Telecommunications, Technology, T-carrier
Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/pri.mp3

The other day, Peter gave us the low-down on the Basic Rate Interface (BRI). This is only one of two ISDN interface options. The other one is the Primary Rate Interface (PRI). In North America, the PRI is provisioned over a T-1 . Like the BRI, the PRI Read More...

PodSnacks: Bonding vs. Multi-Link PPP

Posted Monday, October 20, 2008 6:00 AM by mgilbert :: 0 Comments
Filed under PodSnacks, Internet, Telecommunications, Technology, Data Link Layer, Data Communications
Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/mlppp-bonding.mp3

Today, we wrap up the PPP -related series with a brief look at the Multi-Link Point-to-Point Protocol (MLPPP) and how it compares to the concept of ISDN bonding. In a nutshell, the former is a version of inverse multiplexing in which multiple lower-speed Read More...

PodSnacks: PPP over Ethernet (PPPoE)

Posted Friday, October 17, 2008 6:00 AM by mgilbert :: 0 Comments
Filed under Ethernet, PodSnacks, Internet, Broadband, Telecommunications, Technology, Data Link Layer, Authentication
Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/pppoe.mp3

We recently had a little PAP/CHAP sidebar, so now let's go back to Peter and see if he can give us a bit of an explanation of PPP over Ethernet . If you've followed this series, this might seem like an odd combination. Both PPP and Ethernet are Read More...

PodSnacks: CHAP vs. PAP

Posted Wednesday, October 15, 2008 6:00 AM by mgilbert :: 0 Comments
Filed under Security, PodSnacks, Internet, Telecommunications, Technology, Data Link Layer, Authentication
Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/pap-chap.mp3

Today, we continue the PPP -related series with a brief look at the Password Authentication Protocol (PAP) and the Challenge Handshake Authentication Protocol (CHAP). These are somewhat older authentication strategies that are becoming less important Read More...

PodSnack: Point-to-Point Protocol (PPP)

Posted Monday, October 13, 2008 6:00 AM by mgilbert :: 0 Comments
Filed under PodSnacks, Internet, Telecommunications, Technology, Layer 2, Data Link Layer
Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/ppp.mp3

Time for another snack. Peter (and a few other instructors) have given me a set of audio clips that all have to do with the Point-to-Point Protocol (PPP). This is the Data Link Layer (Layer 2) protocol used on every dial-up Internet connection. It is Read More...

PodSnack: Joost

Posted Friday, October 03, 2008 6:00 AM by mgilbert :: 0 Comments
Filed under IPTV, PodSnacks, Internet, Telecommunications, Technology, Applications
Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/joost.mp3

The other day I promised you that Peter would return today to give you a summary of a new Internet application. This one is about television and entertainment, and it is known as Joost . The cable companies and telco's deploying video services should Read More...

PodSnacks: Instant Messaging

Posted Thursday, October 02, 2008 6:00 AM by mgilbert :: 0 Comments
Filed under PodSnacks, Internet, TCP/IP, Telecommunications, Technology, Data Communications, Applications
Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q4/im.mp3

It isn't exactly email , but instant messaging (IM) is also a messaging application we find both out on the Internet and within private corporate networks. It is widely used, and has even given rise to its own sub-language! In today's PodSnack, Read More...

PodSnack: Skype

Posted Wednesday, October 01, 2008 6:00 AM by mgilbert :: 0 Comments
Filed under Industry Analysis, PodSnacks, Internet, IPT, Telephony, Telecommunications, Technology, Applications
Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/skype.mp3

Hey, we just roped in another Hill Instructor to talk to you! Today, Peter is going to give you the low-down on Skype , and then tomorrow he's going to introduce you to another very promising Internet application, from the same people who gave us Read More...

PodSnacks: Multipurpose Internet Mail Extensions (MIME)

Posted Tuesday, September 30, 2008 6:00 AM by mgilbert :: 0 Comments
Filed under PodSnacks, Internet, TCP/IP, Telecommunications, Technology, Data Communications, Applications, Application Services Layer
Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/mime.mp3

Today we shift back to email . We recently discussed SMTP , so you should know a bit about how email moves across the Internet . But SMTP, as it was initially conceived, was a pure text-based system. Today we want to send far more than that using email, Read More...

PodSnacks: Private IP Addressing

Posted Monday, September 29, 2008 6:00 PM by mgilbert :: 0 Comments
Filed under IP, PodSnacks, Internet, TCP/IP, Telecommunications, Technology
Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/private_ip_addresses.mp3

Today we wander back to TCP/IP , specifically the IP part, specifically the IP address part, specifically the private IP address part . Private IP addresses are used in conjunction with NAT or NAPT to provide for more flexible IP addressing and conserve Read More...

PodSnacks: Java

Posted Thursday, September 25, 2008 6:00 AM by mgilbert :: 0 Comments
Filed under PodSnacks, Internet, TCP/IP, Telecommunications, Technology, Data Communications, Applications, Computing, Application Services Layer
Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/java.mp3

Today we shift to a technology related to the World Wide Web . This technology is actually a programming language known as Java , and it is the magic that makes a lot of the advanced capability of the WWW possible. In today's PodSnack, I'll explain Read More...

PodSnack: Traceroute

Posted Wednesday, September 24, 2008 6:00 AM by mgilbert :: 0 Comments
Filed under PodSnacks, Internet, TCP/IP, Telecommunications, Technology, Network Management, Applications
Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/traceroute.mp3

Recently, we did a session on Ping , a TCP/IP utility we find on most computers. Today, we look at another TCP/IP utility: traceroute . Where Ping tests for reachability and provides round-trip delay on an end-to-end basis, traceroute is really focused Read More...

PodSnacks: Simple Mail Transfer Protocol (SMTP)

Posted Tuesday, September 23, 2008 6:00 AM by mgilbert :: 0 Comments
Filed under PodSnacks, Internet, TCP/IP, Telecommunications, Technology, Data Communications, Applications, Application Services Layer
Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/smtp.mp3

Today we take on email, but this time by looking at the primary protocol used for sending email over the Internet : the Simple Mail Transfer Protocol (SMTP). I hope you find it informative! As always, you can listen to (or download) the PodSnack by clicking Read More...

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